# Work, Energy and Power-Conservation of Mechanical Energy (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 4 - 6 of 6

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## Question number: 4

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2015

MCQ▾

### Question

One end of a slack wire (Young’s modulus Y, length L and cross-sectional area A) is clamped to a rigid wall and the other end to a block (mass m) which rests on a smooth horizontal plane. The block is set in motion with a speed v. What is the maximum distance the block will travel after the wire becomes taut?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 5

» Work, Energy and Power » Conservation of Mechanical Energy

MCQ▾

### Question

A child is sitting on a swing. Its minimum and maximum heights from the ground are 0.55 m and 3 m respectively. What will be its maximum speed?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 6

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2016

MCQ▾

### Question

A uniform ring of radius is moving on a horizontal surface with speed and then climbs up a ramp of inclination to a height . There is no slipping in the entire motion. Then is –

### Choices

Choice (4) Response

a.

b.

c.

d.

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