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Mechanics
Page 6
Questions (39,953)
a man 80kg carries a load of bricks of mass 20kg up a vertical ladder of length 6m what work has he done
7 answers
asked by
ISAAC
4,213 views
Find the Euler's crippling load for a hollow cylindrical steel column of 3.8 mm external diameter and 2.5 mm thick. Take length
4 answers
asked by
ripon
5,574 views
a test car of mass 1250 kg is traveling at a speed of 72 kmph, when it is suddenly braked by locking the wheels. the average
4 answers
asked by
rajat
2,181 views
A billiard ball that is initially at rest is given a sharp blow by a cue stick. The force is horizontal and is applied at a
4 answers
asked by
lost
5,945 views
The sprockets and chain of a bicycle are shown in the figure. The pedal sprocket has a radius of 4 in., the wheel sprocket a
4 answers
asked by
monic
11,344 views
The weight needed to balance a lever varies inversely with the distance from the fulcrum to the weight. A 120-lb weight is
7 answers
asked by
Help
4,808 views
A rock of mass 5kg is pushed over the edge of a cliff which is 200m high
1.ignore air resistance and calculate the speed of the
5 answers
asked by
Annah van tonder
1,086 views
A clerk pushes a filing cabinet of mass 22.0 kg accross the floor by exerting a horizontal force of magnitude 98 N. The
4 answers
asked by
Raj
2,255 views
The cannon on a pirate ships shoots cannon balls with a speed of 350m/s (the muzzle velocity). The cannon can be adjusted to
4 answers
asked by
satvik
181 views
A submarine at the surface of the ocean makes an emergency dive, its path making an angle of 21deg with the surface.
a. If it
5 answers
asked by
trigofunctions
4,735 views
A 1000kg load is suspended from the end of a horizontal boom. The boom is supported by a cable that makes an angle of 35deg with
5 answers
asked by
Shaila
2,890 views
A uniform harf metre rule is freely pivoted at the 15cm mark and it balances horizontally when a body of mass 40g is hung from
5 answers
asked by
Inyass
799 views
The height, in metres, of an object that has fallen from a height of 180 m is given by the position function s(t)=-5t^2
4 answers
asked by
Morris
3,797 views
An archer pulls the bowstring back for a distance of 0.400 m before releasing the arrow. The bow and string act like a spring
4 answers
asked by
Albee
5,490 views
An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its
4 answers
asked by
dmkp
910 views
A student drops a basketball into a pool from a height of 5 meters while her friend records the approximate splash height. They
39 answers
asked by
i need to know
21,845 views
If the coefficient of sliding friction for steel on ice is 0.05, what force is required to keep a man weighing 150 lbs moving at
5 answers
asked by
Angel
3,596 views
A round bar 40mm diameter is subjected to an axial pull of 80kN and
reduction in diameter was found to be 0.00775mm. Find
5 answers
asked by
aswath
3,060 views
A body is thrown vertically upward from the ground with an initial velocity of 96 ft/sec. Find the maximum height attain by the
5 answers
asked by
gillian
5,883 views
A 40 kg ball is pukled to one side until it is 1.5 above itd lowest point. What will be its velocity as it passes through its
5 answers
asked by
Merely
4,180 views
The force which is required to move an object of mass 500g to a distance of 4m
5 answers
asked by
Teri
2,449 views
What is the tension in the rope of this figure description?
60 kg person is hanging in the air on a rope attached to a pulley,
6 answers
asked by
Sarah
20,245 views
Calculate The Value Of g At 1000m Above The Surface Of The Earth.The radius Of The Earth Is 6378.1km.
15 answers
asked by
Yonas
4,500 views
A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m.
7 answers
asked by
Peg
11,402 views
A ball of mass m 5
1.80 kg is released from rest at a height h 5 65.0 cm above a light vertical spring of force constant k as in
6 answers
asked by
ky
13,335 views
A 0.075 kg ball in a kinetic sculpture moves at a constant speed along a motorized conveyor belt. The ball rises 1.32 m above
10 answers
asked by
Brian
12,153 views
A 75 g bungee cord has an equilibrium length of 1.20 m. The cord is stretched to a length of
1.80 m, then vibrated at 20 Hz. This
4 answers
asked by
Lucas
7,893 views
If the pendulum’s length is 2.00 m and ag =9.80 m/s , how many complete oscillations does the pendulum make in 5.00 min?
the
4 answers
asked by
Anonymous
5,423 views
A uniform 34.5-kg beam of length = 4.95 m is supported by a vertical rope located d = 1.20 m from its left end as in the figure
5 answers
asked by
Alex Baker
10,938 views
A small sphere X of mass M is placed a distance d from a point mass. The gravitational force on the sphere X is 90 N. Sphere X
5 answers
asked by
Nate
4,104 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 man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the
6 answers
asked by
Ame
8,765 views
21. A traffic signal of mass 25.0 kg is suspended by two cables as shown in the diagram below. Solve for the tension in each
4 answers
asked by
Danny
4,675 views
A uniform meter rule of mass 100g balance at a 40cm mark when a mass x is placed at the 10cm mark.What is x?
7 answers
asked by
Abubakar
5,872 views
A wheel of diameter 28.0 cm is constrained to rotate in the xy plane, about the z axis, which passes through its center. A force
130 answers
asked by
Joe
3,936 views
While a roofer is working on a roof that slants at 43.0 above the horizontal, he accidentally nudges his 88.0 toolbox, causing
5 answers
asked by
Anonymous
3,839 views
An object falls freely from a height of 25m onto a roof of a building 5m high. Calculate the velocity with which the object
5 answers
asked by
Obaloluwa
2,055 views
A diver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. He then pulls is arms and legs
5 answers
asked by
jason
6,453 views
a machine gun fires 10 bullets persecond into a target. each bullet weights 20 gm and had a speed of 1500 m per second .find the
6 answers
asked by
sunny
2,321 views
a stone is thrown upward with an initial velocity of 20m/s.air resistance is ignored.how far does it take to reach the top?
4 answers
asked by
joseph
1,216 views
a uniform half metre rule is freely pivoted at the 20 cm mark and its balance horizontaly when a body of mass 30g is hung 5cm
6 answers
asked by
Anonymous
2,462 views
A 45.7-kg boy on a swing moves in a circular arc of radius 3.80 m.At the lowest position, the child's speed reaches 2.78 m/s.
5 answers
asked by
khan
2,128 views
The coefficient of static friction between a heavy box and a ramp is 0.450, The weight of the box is 1200.0 N and the ramp has
4 answers
asked by
Ava
925 views
A 52kg ice hockey player moving at 11m/s slows down and stops over a displacement os 8.0m.
Calculate the net force of the skater.
6 answers
asked by
Mike
2,951 views
A stone of mass 20g is release from a catapult whose rubber has been stretched through 4cm, if the force constant of the rubber
12 answers
asked by
Justice
5,556 views
Assume that all of the mass of a bicycle wheel is concentrated at its rim. Such a wheel of mass 1.2 kg and radius 30 cm starts
5 answers
asked by
kelsey
3,298 views
a bullet of mass 20 grams is fired horizontally into suspended stationally Worden block of mass 380 grams with velocity of 200
7 answers
asked by
Manikumar shah
2,329 views
a) The x-coordinate of an electron is measured with an uncertainty of 0.20 mm. What is the xcomponent
of the electron’s
4 answers
asked by
B. Ramez
4,027 views
A circular swimming pool has a diameter of 14 m, the sides are 4 m high, and the depth of the water is 3.5 m. (The acceleration
4 answers
asked by
Anonymous
4,581 views
Find the effort of a machine whose mechanical advantage is 3 where load is 30N
5 answers
asked by
Anonymous
1,514 views
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