EASY
Earn 100

Distinguish between uniform and non-uniform acceleration.

Important Questions on Motion

EASY

A force of 100 N acts on a body so that the body acquire a velocity of 10 ms-1 after some time. Now the force of 100 N is replaced by another force F which decelerates the body and body come to the rest then.

EASY
A car travels half distance with speed 20 m s-1 and next half distance travel with 30 m s-1 the average speed of the car is
MEDIUM

A body starts from rest is accelerated uniformly for 30s. If x1, x2, x3 are the distances travelled in first 10s; next 10s and last 10s respectively, then x1 : x2 : x3 is

EASY
The S.I. unit of retardation is
MEDIUM
A car accelerates uniformly from 18 km/h to 36 kmh in 5 sec. Calculate the acceleration.
EASY

Question Image

In the above graph what is the value of acceleration? 

MEDIUM
A train starting from rest attains velocity of 72 km h-1 in 5 min, then find the acceleration.
(Assuming that the acceleration is uniform)
EASY

State which of the following situations are possible and give an example for each of these:

An object with a constant acceleration but with zero velocity.

EASY

What do you mean by 5 m s-2?

MEDIUM
A ball hits a wall horizontally at 6.0 ms-1. It rebounds horizontally at 4.4 ms-1. The ball is in contact with the wall for 0.040 s. What is the acceleration of the ball?
EASY
A motorcyclist starts from rest and reaches a speed of 6 m s-1 after travelling with uniform acceleration for 3 s. What is his acceleration?
MEDIUM
A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 m s-2. With what velocity will it strike the ground? After what time will it strike the ground?
MEDIUM
What do we mean by saying that the acceleration of a body is 3 m s-2?
EASY
What is the acceleration of a body moving with uniform velocity?
EASY
What does negative slope of velocity-time graph represent?
MEDIUM

State whether the following situation is possible or not and give an example for the case.

An object with a constant acceleration but with zero velocity.

MEDIUM

An object is thrown vertically upwards and rises to a height of 20 m. Calculate the velocity with which the object was thrown upwards. (g=10 ms2).

EASY

Can be a body be accelerated, if it is moving with constant speed?

EASY

The direction of acceleration is same as that of _____.

(force/torque)