Kinematics (BITSAT Physics): Questions 7 - 11 of 28

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Question number: 7

» Kinematics » Motion in a Plane

MCQ▾

Question

An aero plane is moving with a horizontal velocity u at a height h . The velocity of packet dropped from it on the earth’s surface will be

Choices

Choice (4) Response

a.

2gh

b.

2gh

c.

u2+2gh

d.

u22gh

Question number: 8

» Kinematics » Motion in a Plane

MCQ▾

Question

A bomb is dropped from an aero plane moving horizontally at constant speed. If air resistance is taken into consideration, then the bomb –

Choices

Choice (4) Response

a.

Falls on the earth exactly behind the aero plane

b.

Flies with the aero plane

c.

Falls on earth exactly below the aero plane

d.

Falls on the earth ahead of the aero plane

Question number: 9

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

The displacement x of a particle moving along a straight line at time t is given by

x=ao+a1t+a2t

The acceleration of the particle is –

Choices

Choice (4) Response

a.

4a2

b.

a2

c.

2a1

d.

2a2

Question number: 10

» Kinematics » Scalars and Vectors » Vector Addition and Subtraction

MCQ▾

Question

Two vectors A and B are such that A+B=C and A2+B2=C2. If θ is the angle between positive direction of A and B then the correct statement is

Choices

Choice (4) Response

a.

θ=0

b.

θ=π2

c.

θ=2π3

d.

θ=π

Question number: 11

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

When a bus suddenly takes a turn, the passengers are thrown outwards because of –

Choices

Choice (4) Response

a.

Acceleration of motion

b.

Inertia of motion

c.

Speed of motion

d.

None of the above

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