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Engineering Mechanics & Steel Structures APPSC AE_CE Quiz-2

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Question 1

A bullet is fired from a gun. The force on the bullet is given by F = 600 – 2 × 10⁵ t where F is in Newton and t in seconds. The force on the bullet becomes zero as soon as it leaves the barrel.

What is the average impulse imparted to the bullet?

Question 2

The length of the chest-expander spring when it is un-stretched is 0.6m and its stiffness is 10N/mm. The work done in stretching it to 1m will be

Question 3

The rate of change of moment of momentum represents the :

Question 4

The quantity, which is equal to rate of change of momentum is known as :

Question 5

If two bodies, one light and other heavy, have equal kinetic energy, which on has a greater momentum?

Question 6

A bucket of water weighing 10 kg is pulled up from a 20 m deep well by a rope weighing 1 kg/m length, then the work done is __________.

Question 7

A body is moving in a straight line trajectory as shown below. It hits the wall at an angle of θ with the surface of the wall. Choose from the following statements, the correct statement of the momentum change undergone by the body

Question 8

The rate of change of linear momentum is equals to ________.

Question 9

Find average force during collision

Δt = 5 sec

Question 10

Two masses, 2 kg and 8 kg, are moving with equal kinetic energy. The ratio of magnitudes of their momentum is

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