Work, Energy and Power-Work-Energy Theorem (AIIMS Physics): Questions 5 - 9 of 10

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Question number: 5

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

A bullet loses Equation of its velocity when it passes through a plank. Find the maximum number of planks through which it can pass.

Choices

Choice (4) Response

a.

10

b.

5

c.

3

d.

9

Question number: 6

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

A block of mass 20 kg is moving in x-direction with a constant speed of Equation . It is subjected to a retarding force Equation during its travel from Equation to Equation . Its final kinetic energy will be –

Choices

Choice (4) Response

a.

500 joules

b.

850 joules

c.

750 joules

d.

920 joules

Question number: 7

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

A bullet when fired at a target with a velocity of Equation , penetrates 4.5 meter into it. If the bullet is fired with the same velocity at a similar target with a thickness 0.5 meter, then it will emerge from it with a velocity of –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

All of the above

Question number: 8

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

Ratio of mass of proton and mass of electron is nearly about 1840. Now, if proton is accelerated by a potential difference of 2 KV, its kinetic energy is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 9

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

A body rests on a horizontal rough surface. The coefficient of friction between the body and the surface is Equation . The body is given a velocity of Equation . What is the distance covered by the body before coming to rest?

Choices

Choice (4) Response

a.

112.5 m

b.

100 m

c.

120.6 m

d.

132.5 m

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