Kinematics (KVPY Stream-SA (Class 11) Physics): Questions 16 - 20 of 21

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Question number: 16

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A body moving in a straight line covers a distance of 16 m in the 3th second and 24 m in 7th sec. Distance will it cover in 5th second is –

Choices

Choice (4) Response
a.

11

b.

23

c.

20

d.

17

Question number: 17

» 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: 18

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A body moving in a straight line covers a distance of 12 m in the 2th second and 22 m in 5th sec. Distance will it cover in 7th second is –

Choices

Choice (4) Response
a.

22.21

b.

15.51

c.

17.53

d.

28.66

Question number: 19

» 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

Question number: 20

» Kinematics » Relative Velocity

MCQ▾

Question

A train of length l (180 m) is going towards north directional constant speed v1=16 m/s. A parrot flies at a constant speed of v2 = 4 m/s towards south parallel to be railway track. The time taken by the parrot to cross the train is –

Choices

Choice (4) Response
a.

7 s

b.

3 s

c.

9 s

d.

5 s

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