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Mechanics
Page 4
Questions (39,947)
A person gets a running start toward a wall from 5 meters away. The person pushes the wall with a force of 500 newtons, but the
1 answer
asked by
Uncle moe last name lester
75 views
A box of mass m = 6kg slides with speed v = 4 m/s across a frictionless floor. It suddenly explodes into two pieces. One piece,
6 answers
asked by
Shahab Mirza
4,464 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
A 10kg mass is supported by two strings of length 5 m and 7 m attached to two points in the ceiling 10 m apart. Find the tension
7 answers
asked by
Simba
7,259 views
A magnetic particle weighing 3.6 grams is pulled through a solenoid with an acceleration of
6m/s2. Compute the force in pounds
4 answers
asked by
sam
1,238 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
3,245 views
What is the spring constant of a spring that stretches 2.00 cm when a mass of 0.600 kg is suspended from it?
Answer i know the
5 answers
asked by
v
8,160 views
A spring with a 4 kg mass has natural length 1 m and is maintained stretched to a length of 1.3 m by a force of 24.3 N. If the
5 answers
asked by
COFFEE
2,626 views
a string can hold up 12 kg without breaking. You tie the string to a 30kg object sitting on ice and use it to pull the object
5 answers
asked by
John
3,258 views
1) When a pendulum 0.5m long swings back and forth, its angular displacement Ɵ from rest position, in radians is given by
5 answers
asked by
Hyde
3,796 views
A machine has a velocity ratio of 6 and is 80% efficiency.What effort would be needed to lift a load of 300 with the help of
6 answers
asked by
Bright
4,897 views
make m the subject of the formula mg-t= ma
5 answers
asked by
esther edomoh
523 views
maria's bicycle has a diameter of 64 cm. as she rides at the speed of 21.6 km/h, she picks up a stone in her tire. draw a graph
6 answers
asked by
Allison
2,770 views
a boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10cm high in 10 seconds. What is his power? show your
11 answers
asked by
marv
7,604 views
a 15-g bullet is fired from a rifle. it takes 2.50 * 10^-3s for the bullet to travel the length of the barrel, and it exits the
5 answers
asked by
courtney
7,174 views
when a 14.0 kg mass hangs from a spring that has a spring constant of 550nm the spring has a length of 82 cm. determine the
5 answers
asked by
FORM 3G
2,177 views
A 30-lb child is siting at A(2,3) and a 50-lb child is at B(12,7) where units are feet .Find the point P between A and B which
4 answers
asked by
neil
2,334 views
A toy rocket has a mass of 350g at launch.the force it produces is 15N and it is fired at angle of 65⁰ to the horizontal.what
7 answers
asked by
Tesnim
1,087 views
I need help with this question please. A solid cylinder of mass m and radius R has a string wound around it. A person holding
7 answers
asked by
Una
7,994 views
A body oscillates with simple harmonic motion along the x-axis. Its displacement varies with time according to the equation x=5
5 answers
asked by
veena
5,208 views
An object projected horizontally from the top of a cliff with a velocity of 7 metre per second and land on the ground level a
5 answers
asked by
Favour
1,699 views
A uniform AB weighing 40g can be balanced horizontally on a knife edge at 2 cm from the end A when mass of 60 is hung from this
5 answers
asked by
Janeth
941 views
Each of the four wheels of a car push on the road with a force of 4.0*10^3 N [down]. The driving force on the car is 8.0*10^3 N
4 answers
asked by
Maggie
1,718 views
a stone is thrown at an angle of 30 degrees above the horizontal from the top edge of a cliff with an initial speed of 12m/s. a
4 answers
asked by
S
3,359 views
Mathematical relationship between the change in momentum of an object and the net force applied to the object
4 answers
asked by
Reabetswe Bernice
234 views
A spiral spring of natural length of 20.0cm has a scale pan hanging freely on its lower end. When an object of mass 40g is
4 answers
asked by
Grace
2,229 views
A soccer ball is kicked from the ground and lands 2.2 seconds later. If the ball was kicked at an angle of 55 degrees above
4 answers
asked by
Lance Gladbach
5,997 views
an elephant of mass 50kg stands with all four feet on the ground. each foot has an area of 0.2m^2calculate the pressure exerted
4 answers
asked by
daniel
697 views
Use the image to answer the question.
An illustration shows three coiled wire springs stretched to varying lengths. The first
7 answers
asked by
:p
64 views
Your bumper car is travelling at 2 m/s. The total mass of you and your car is 350 kg. An empty motionless bumper car with a mass
4 answers
asked by
anonymous
2,837 views
Suppose that an object is dropped from a height of h meters and hits the ground with a velocity of v meters per second. Then v=
6 answers
asked by
Bryan
13,380 views
A sled of 6 kg mass is moving along a smooth, horizontal ice surface with a velocity of Vo. A force of 36 N is applied to the
5 answers
asked by
Alisha
1,204 views
Two rocks of very different sizes are dropped from the same height. Which value will be different for the two rocks?(1 point)
the
10 answers
asked by
Help plz
6,239 views
If a student measures the length of the pendulum to be 0.510m in a simple pendulum experiment and determines that the period of
3 answers
asked by
Precious
392 views
Question Four
A simple pendulum is used in a physics laboratory experiment to obtain an experimental value for the gravitational
5 answers
asked by
Jay Peels
1,269 views
1. A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of
23 answers
asked by
Lisa
3,482 views
A car of mass 760kg travel with a velocity of 14.0ms-1 . If the brakes are applied , the car travels a distance of 55.0m before
5 answers
asked anonymously
185 views
David can row at 5 m/s in still water. He starts rowing from a point on the south bank of a river that is flowing due east at 3
4 answers
asked by
LE
1,124 views
A 650 N boy and a 490 N girl sit on a 150 N porch swing that is 1.70 m long. If the swing is supported by a chain at each end,
7 answers
asked by
Jennifer
4,410 views
1. Scientists seek to acquire knowledge and understanding of the real world through the formulation, testing, and evaluation of
4 answers
asked by
Idk name here
1,539 views
Find the speed and period of a satellite that orbits Mars 175 km above it's surface. (The average radius of Mars is 3.40 x 10^6;
4 answers
asked by
Rebecca
1,373 views
A car of mass 600 kg is moving at a speed of 20 m/s.it collides with a stationary car of mass 900 kg.if the first car bounces
10 answers
asked by
Mrsi
4,670 views
A ball mass 1000g is drop from a height Of 5m and rebounded to a height Of 25 m. Find i it kintentic just before impact ii its
9 answers
asked by
Anonymous
3,310 views
a 1.4 kg block slides across a rough surface such that it slows down with an acceleration of 1.25 m/s2. What is the coefficient
5 answers
asked by
ellimac
5,346 views
A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolutions
will it make, and what time
7 answers
asked by
joel
6,770 views
A ball falls from a shelf. Assuming there is no friction, why is the conservation of mechanical energy independent of mass?
Mass
7 answers
asked by
Anonymous
3,583 views
a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the
5 answers
asked by
Jess
4,220 views
A 1.00-kg duck is flying overhead at 1.50 m/s when a hunter fires straight up. The 0.010 0-kg bullet is moving 100 m/s when it
4 answers
asked by
jillian
5,259 views
A 1000 kg car is rolling down the street at 2.5 m/s. How fast would a 2500 kg car have to collide into it in order to bring it
5 answers
asked by
eileen
4,632 views
Water drives a waterwheel (or turbine) of radius 3.0m. The water enters at a speed of v1 = 7.0 m/s and leaves at a speed of v2=
5 answers
asked by
Odd
5,042 views
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