Kinematics-Uniform and Non-Uniform Motion (KVPY Stream-SA (Class 11) Physics): Questions 1 - 3 of 3

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Question number: 1

» Kinematics » Uniform and Non-Uniform Motion

Appeared in Year: 2011

MCQ▾

Question

A juggler tosses a ball up in the air with initial speed u. At the instant it reaches its maximum height H, he tosses up a second ball with the same initial speed. The two balls will collide at a height.

Choices

Choice (4) Response

a.

34H

b.

H2

c.

H4

d.

3H4

Question number: 2

» Kinematics » Uniform and Non-Uniform Motion

MCQ▾

Question

A rocket is fired upward from the earth’s surface such that it creates an acceleration of 21.7 m s-2. If after 10 s, its engine is switched off, the maximum height of the rocket from earth’s surface would be-

Choices

Choice (4) Response

a.

3490 m

b.

2435.5 m

c.

2450 m

d.

3487.5 m

Question number: 3

» Kinematics » Uniform and Non-Uniform Motion

MCQ▾

Question

At the moment t = 0, a particle leaves the origin and moves in positive direction of x – axis. Its velocity varies with time as,

v=v0(1tt0)

Where v0 is the initial velocity vector whose modulus equals v0=10cms , t0=5sec . The moments of time when the particle is at the distance + 10 cm is –

Choices

Choice (4) Response

a.

1±15

b.

5±10

c.

5±15

d.

1±10

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