# Kinematics-Average Speed and Instantaneous Velocity (NEET Physics): Questions 26 - 28 of 108

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## Question number: 26

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

The angular displacement of a particle is given by where co0 and a are constant and ∞0 = 1 rad/sec, α = 1.5 rad/sec2. The angular velocity at time, t = 2 sec will be (in rad/sec) –

### Choices

Choice (4) Response

a.

5

b.

1

c.

3

d.

4

## Question number: 27

» Kinematics » Average Speed and Instantaneous Velocity

Assertion-Reason▾

### Assertion (Ꭺ)

A man projects a stone with speed u at some angle. He again projects a stone with same speed such that time of flight now is different. The horizontal ranges in both the cases may be same. (Neglect air friction)

### Reason (Ꭱ)

The horizontal range is same for two projectiles projected with same speed if one is projected at an angle 6 with the horizontal and other is projected at

an angle (90° - 6) with the horizontal. (Neglect air friction)

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

## Question number: 28

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

A ball ‘A’ is projected from origin with an initial velocity v0 = 700 cm/sec in a direction 37° above the horizontal as shown in fig Another ball ‘B’ 300 cm from origin on a line 37° above the horizontal is released from rest at the instant A starts. How far will B have fallen when it is hit by A?

### Choices

Choice (4) Response

a.

900 cm

b.

0.9 cm

c.

90 cm

d.

9 cm

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