# Kinematics-Average Speed and Instantaneous Velocity (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 44 - 48 of 108

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## Question number: 44

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

A particle moves in a circle of radius 10cm with a linear speed of 20m/s. The angular velocity will be –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 45

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

The angular speed with which the earth would have to rotate on its axis so that a person on the equator would weigh (3/5) th as much as present, will be: (Take the equatorial radius as 6400 km)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Passage

Velocity at a general point P (x, y) for a horizontal projectile motion is given by

V = =

α is angle made by v with horizontal in clockwise direction Trajectory equation for a horizontal projectile motion is given by x = v x t = ut

y =- () gt 2

Eliminating t, We get y =-

## Question number: 46 (1 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

An aeroplane is in a level flying at an speed of 144 km/hr at an altitude of 1000 m. How far horizontally from a given target should a bomb be released from it to hit the target?

### Choices

Choice (4) Response

a.

471.34 m

b.

671.43 m

c.

371.34 m

d.

571.43 m

## Question number: 47 (2 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

A ball rolls off top of a stair way with a horizontal velocity u m/s. If the steps are h m high and b meters wide, the ball will just hit the edge of nth step if n equals to

### Choices

Choice (4) Response

a.

b.

c.

d.

Both c. and a. are correct

## Question number: 48 (3 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

### Question

An aeroplane is flying horizontally with a velocity of 720 km/h at an altitude of 490 m. When it is just vertically above the target a bomb is dropped from it. How far horizontally it missed the target?

### Choices

Choice (4) Response

a.

2000 m

b.

200 m

c.

1000 m

d.

100 m

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