Kinematics (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 1 - 3 of 13

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Question number: 1

» Kinematics » Uniform and Non-Uniform Motion

Appeared in Year: 2010

MCQ▾

Question

A ball is dropped vertically from a height of h onto a hard surface. If the ball rebounds from the surface with a fraction r of the speed with which it strikes the latter on each impact, what is the net distance traveled by the ball up to the 10th impact?

Choices

Choice (4) Response

a.

h1r201r2

b.

2h1r221r2h

c.

2h(1r10)1r

d.

2h1r201r2h

Question number: 2

» Kinematics » Position-Time Graphs

Appeared in Year: 2011

MCQ▾

Question

A particle moves in a plane along an elliptic path given by x2a2+y2b2=1. At point (0, b), the x – component of velocity is u. The y – component of acceleration at this point is –

Choices

Choice (4) Response

a.

u2b

b.

u2a

c.

bu2a2

d.

au2b2

Question number: 3

» Kinematics » Velocity-Time Graphs

Appeared in Year: 2012

MCQ▾

Question

A particle released from rest is falling through a thick fluid under gravity. The fluid exerts a resistive force on the particle proportional to the square of its speed. Which one of the following graphs best depicts the variation of speed v with time t is?

Choices

Choice (4) Response

a.

Graph of variation of speed with time- Choice A

Graph of Variation of Speed With Time- Choice A

In figure a graph of variation of speed v with time t is shown.

b.

Graph of variation of speed with time Choice B

Graph of Variation of Speed With Time Choice B

In figure a graph of variation of speed v with time t is shown.

c.

Graph of variation of speed with time Choice C

Graph of Variation of Speed With Time Choice C

In figure a graph of variation of speed v with time t is shown.

d.

 Graph of variation of speed with time Choice D

Graph of Variation of Speed With Time Choice D

In figure a graph of variation of speed v with time t is shown.

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