Questions LLC
Login
or
Sign Up
Ask a New Question
Mechanics
Page 3
Questions (39,951)
An object weighs 15N in air and 13N when submerged in water. What is the density of the object.
5 answers
asked by
Striker
6,441 views
a grasshopper jumps at an angle 50 degrees from the ground with an initial velocity of 5 m/s. when air resistance is absent,
5 answers
asked by
Clevy
2,122 views
A radar gun was used to record the speed of a car (in feet per minute) during selected times in the first 2 minutes of a race.
5 answers
asked by
Deondre
4,112 views
A ball of mass 500g is kicked into the air at angle of 45degree. It reaches a height of 12m. What was it's initial velocity?
7 answers
asked by
Sam
3,319 views
A ball is thrown towards a vertical wall from a point 2m above the ground and 3m from the wall. the initial velocity of the ball
8 answers
asked by
ridhi
3,123 views
If a bullet is fired with the speed of 6.0x10² m/s horizontally from a height of 48 m, how long will it take to hit the ground?
7 answers
asked by
Confuzzled
3,208 views
A uniform cylindrical spool of mass M and radius R unwinds an essentially
massless rope under the weight of a mass m. If R = 12
4 answers
asked by
Nora
2,525 views
The angular speed of a larger pulley wheel (radius=15cm) is 50 rev./min. Find the angular speed of the smaller wheel
4 answers
asked by
Mary
1,455 views
The mass of the roller coaster below is 80 kg. It starts from rest at a height of 30 m and reaches a speed of 20 m/s at point B.
4 answers
asked by
Heylee Green
1,001 views
A baseball is thrown upwards from a height of 2 meters with an initial velocity of 10 meters per second. Use the fact that -9.8
4 answers
asked by
Emily
8,162 views
1. A spring bearing a 10-pound weight has stretched 0.5 inches. If you were to increase the weight to 15 pounds, how many inches
5 answers
asked by
John Gomez
4,423 views
A coconut of mass 2kg is on a tree of 5m tall; determine the potential energy of this height Take g=10ms^-2.
7 answers
asked by
Elvis
2,369 views
A man mass 75 kg and a boy mass 25 kg dives off the end of a boat of mass 300 kg so that their relative horizontal velocity with
5 answers
asked by
sjeba
3,136 views
A hydraulic plunger has a 12 cm diameter and a force of 350 kN acts on it. What is the pressure exerted on the plunger?
4 answers
asked by
jay
1,917 views
An 8.00kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0 degrees below the horizontal. The
5 answers
asked by
Amisha
11,119 views
A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The spring has a force constant of
5 answers
asked by
Abdul
6,082 views
how large a force is required to accelerate a 1300 kg car from rest to a speed of 20 m/s in a horizontal distance of 80 m ? I'm
6 answers
asked by
courtland
7,780 views
A 1200 lb sleigh is pulled along a horizontal surface at uniform speed by means of a rope that makes an angle of 30 degrees
5 answers
asked by
Lian
3,930 views
A bowling ball rolls without slipping up a ramp that slopes upward at an angle (beta) to the horizontal. Treat the ball as a
4 answers
asked by
Joe
7,668 views
A Frisbee is thrown horizontally with a speed of 12 m/s. If the Frisbee moves a horizontal distance of 15 m, how long will it
5 answers
asked by
Jhoy
4,170 views
A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over
5 answers
asked by
Holly
4,393 views
A cart rolls down a 2.5 m frictionless ramp in 1.25s after starting from rest at the top. What is the angle of the ramp?
4 answers
asked by
Carmen
600 views
A non-rotating cylindrical disk of moment of inertia I is dropped onto an identical disk rotating at angular speed w. Assuming
5 answers
asked by
Aja
4,552 views
a 3200-lb elevator cab is supported by a cable in which the maximum safe tension is 4000 lb. (a)what is the greatest upward
4 answers
asked by
esther
1,919 views
Two pullies are connected by a belt, Pulley A has a radius of 3 cm and pulley B has a radius of 6cm. As Pulley A rotates, a drop
4 answers
asked by
Anonymous
1,692 views
A flywheel of moment of inertia 0.32 kgm^2 is rotated steadily at 120rad/s by a 50 W electric motor. (i)find the kinetic energy
4 answers
asked by
Edwin
4,682 views
A 20 kg cannonball is fired from a 2.4 x 103 kg. If the cannon recoils with a velocity of 3.5 m/s backwards, what is the
3 answers
asked by
Ula
1,564 views
A hole 3cm in diameter is to be punched out of a steel plate 8cm thick. The shear stress of the material is 670GPa. What load is
5 answers
asked by
Danny
5,199 views
The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to
7 answers
asked by
Tyger2020
2,960 views
Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and are attached to the post which is held
4 answers
asked by
Kishore
3,247 views
A toy rocket has a mass 0f 350g at launch. The force it produces is 15N and it is fired at an angle of 65° to the horizontal.
10 answers
asked by
Joseph
5,794 views
a crate weighing 562 newtons is resting on an inclined plane 30 degress above the horizontal. Find the components of the weight
7 answers
asked by
amirah
6,165 views
when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what
5 answers
asked by
joe
18,152 views
There is a 100g mass sitting on the 10cm mark, and a 50g mass sitting on the 60cm mark. Force 𝐹 acts at the 30cm mark.
6 answers
asked by
Physics Student
4,050 views
Wayne pulls a 305 N sled along a snowy path using a rope that makes a 45.0° angle with the ground. Wayne pulls with a force of
5 answers
asked by
Merlin
6,038 views
A spiral spring is compressed by 0.04m. Calculate the energy stored in the spring if the force constant is 400N/m... pls I need
6 answers
asked by
Okpe-Lewis A.L.H Emmanuella
3,169 views
A 1.5-kg cart is pulled with a force of 7.3 N at an angle of 40° above the horizontal. If a kinetic friction force of 3.2 N
4 answers
asked by
joe
3,974 views
A car with a mass of 1500kg starts from rest and accelerates to a speed of 18m/s in 12s. Assume that the force of resistance
5 answers
asked by
Anonymous
4,563 views
A block with mass m =7.3 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.21 m.
7 answers
asked by
Chad
5,870 views
An elastic string of length 20cm extends to 24cm. When it supports a weight of 50N, the energy stored in the string is
5 answers
asked by
ayo
2,594 views
A 1250 kg car travelling at 60.0 km/h comes to a sudden stop in 35 m. What is the coefficient of friction acting on the brakes?
5 answers
asked by
John Appleseed
2,858 views
A uniform meter rule is balanced at 30cm mark when a mass of 50g is hanging from its zero mark. calculate the weight of the
5 answers
asked by
sidney
1,846 views
An automobile of mass 2000kg started from rest position and increased it's speed uniformly to 9m/s in 30s,it maintained this
6 answers
asked by
Tina
1,307 views
A body falls freely from rest for a 6sec find the distance traveled in the last 6sec.
4 answers
asked by
Dave Ang
1,562 views
A load of 4N extends a spring by 10mm. What load would extend it by 15mm?
5 answers
asked by
Luyando
732 views
A block and tackle having a velocity ratio of 5 is used to raise a load of 400N through a distance of 10m. If the work done
6 answers
asked by
Michael Nyame
3,610 views
A spiral spring extends from length 10.01m to 10.00cm when a force of 20N is applied on it. Calculate the constant force
14 answers
asked by
lola
4,613 views
In its approach to an airport runway, an airplane of mass 1.24 x 10^5 kg has a velocity of 75.5 m/s [11.1 degrees below the
4 answers
asked by
Jordge
1,486 views
Ronald Johnson, who is 80.0 kg, is running at 4.00 m/s when he suddenly jumps onto a stationary playground merry-go-round at a
4 answers
asked by
J
893 views
A 120-MT concrete beam is lifted from the floor by two tandem heavy lift cranes up to a
target height of 7.5 meters. Calculate
1 answer
asked anonymously
91 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (42)
Automotive
Automotive Services
Car Repair
Dynamics
Engineering
Engineering and Technology
Force
Forces
Forces and Motion
Game Design
Horseshoes
Kinetic Energy
Language Arts
Language/Communication
Math
Mathematics
MDA Framework
Motion
Physical Science
Physical Sciences
Physics
Physics and Astronomy
Physics and Engineering
Physics and Mathematics
Physics Education
Physics or Science
Physics/Energy and Forces
Physics/Engineering
Physics/Mathematics
Physics/Science
Professional Services
Relativity
Science
Science and Engineering
Science and Physics
Science and Technology
Science or Physics
Science/Engineering
Science/Physics
Statics
Technology
Work and Energy