EASY
9th CBSE
IMPORTANT
Earn 100

A bus starts from rest and attains 40 km h-1 velocity after 10 seconds. Calculate the acceleration of the bus in (i) km h-2 (ii) m s-2.

Important Questions on Motion

EASY
9th CBSE
IMPORTANT
A bus moving with a velocity of 60 km h-1 is brought to rest in 20 seconds by applying brakes. Find its acceleration.
EASY
9th CBSE
IMPORTANT
A car is retarded by applying brakes at a rate of 2 m s-2. It is finally stopped in 10 s. Find its initial velocity.
EASY
9th CBSE
IMPORTANT
A train moving with velocity of 54 km h-1 is accelerated so that its velocity becomes 72 km h-1 in 15 seconds. Find the acceleration of the train.
EASY
9th CBSE
IMPORTANT
A car starts from rest and accelerates uniformly at 2 m s-2 for 10 s. What is its velocity at the end of 10 s?
EASY
9th CBSE
IMPORTANT
A train starts from rest and accelerates uniformly at 10 m s-2 for 1 minute. Find the (i) velocity and (ii) distance travelled by the train at the end of 1 minute.
EASY
9th CBSE
IMPORTANT
A stone is dropped down a deep well from rest. The well is 50 m deep. How long will it take to reach the bottom of well? Given a=9.8 m s-2.
EASY
9th CBSE
IMPORTANT
A car is moving with a uniform velocity of 10 m s-1. The driver of the car decided to overtake a bus moving ahead of car. So the driver of the car accelerates at 1 m s-2 for 10 s. Find the velocity of the car at the end of 10 s. Also, find the distance travelled by the car while accelerating.
HARD
9th CBSE
IMPORTANT
A motorcyclist riding motorcycle A is travelling at a speed of 20 m s-1 applies the brakes and stops the motorcycle in 10 s. Another motorcyclist of motorcycle B who is travelling at a speed of 5 m s-1 applies the brakes and stops the motorcycle in 20 s. Plot speed-time graph for the two motorcycles. Which of the two motorcycles travelled farther before it comes to a stop?