Work, Energy and Power (NEST (National Entrance Screening Test) Physics): Questions 1 - 2 of 2

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Question number: 1

» Work, Energy and Power » Work Done

Appeared in Year: 2013

MCQ▾

Question

A particle of mass Equation goes counterclockwise around a square path Equation with vertices at Equation in a force, Equation . Here, Equation and Equation are positive constants. Consider the work done along the following paths:

(i) Equation

(ii) Equation

(iii) Equation

(iv) Equation

The work done is zero for –

Choices

Choice (4) Response

a.

Paths (i) and (ii) only.

b.

Paths (i), (iii) and (iv) only.

c.

Paths (ii), (iii) and (iv) only.

d.

Paths (ii) and (iv) only.

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Question number: 2

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2015

MCQ▾

Question

A mass of Equation is dropped from a height of Equation on a horizontal spring board. The vertical spring supporting the board has a spring constant of Equation . The maximum distance by which the mass compresses the spring is close to –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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