Kinematics (BITSAT Physics): Questions 1 - 6 of 11

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Question number: 1

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

R. M. S. velocity of a particle is v at pressure P. If the pressure increases by two times, then R. M. S. velocity will become –

Choices

Choice (4) Response

a.

4v

b.

2v

c.

0.5v

d.

v

Question number: 2

» Kinematics » Motion in a Plane

MCQ▾

Question

A man is standing on a spring platform. Reading of spring balance is 60kg wt. If man jumps outside from the platform, then reading of spring balance –

Choices

Choice (4) Response

a.

Increase

b.

Remain same

c.

Decrease to zero

d.

Both a. and c. are correct

Question number: 3

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

If vector A and B has angle θ between them, then vector product is –

Choices

Choice (4) Response

a.

ABcosθ

b.

AB

c.

A×B×cosθ

d.

ABsinθ

Question number: 4

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

What is the dot product of two vectors of magnitude 3 and 5 , if angle between them is 60° ?

Choices

Choice (4) Response

a.

7.5

b.

8.6

c.

8.4

d.

5.2

Question number: 5

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

If a body starts from rest and travels 120cm in the 8th second. Then acceleration of the body is –

Choices

Choice (4) Response

a.

0.18ms2

b.

0.34ms2

c.

0.16ms2

d.

1.02ms2

Question number: 6

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

If an iron ball and a wooden ball of the same radius are released from a height h in vacuum, then time taken by both of them to reach ground will be

Choices

Choice (4) Response

a.

Unequal

b.

Roughly equal

c.

Zero

d.

Exactly equal

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