HARD
9th ICSE
IMPORTANT
Earn 100

An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 min 20 s?

Important Questions on Motion in One Dimension

MEDIUM
9th ICSE
IMPORTANT
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 min 30 s and then turns around and jogs 100 m back to point C in another 1 min. What are Joseph's average speeds and velocities in jogging from end A to B ?  
MEDIUM
9th ICSE
IMPORTANT
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 min 30 s and then turns around and jogs 100 m back to point C in another 1 min. What are Joseph's average speeds and velocities in jogging from end A to C? 
MEDIUM
9th ICSE
IMPORTANT
A cheetah is the fastest land animal and can achieve a peak velocity of 100 km/h upto distances less than 500 m. If a cheetah spots its prey at a distance of 100 m, what is the minimum time it will take to get its prey, if the average velocity attained by it is 90 km/h
MEDIUM
9th ICSE
IMPORTANT
A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 ms-2,  with what velocity will it strike the ground? After what time will it strike the ground? 
MEDIUM
9th ICSE
IMPORTANT
A ball is thrown vertically upwards with a velocity of 20 m/s from the top of the multistorey building. The height of the point from where the ball is thrown 25 m from the ground. How high will the ball rise? (Take, g = 10 m/s2).
MEDIUM
9th ICSE
IMPORTANT
A ball is thrown vertically upwards with a velocity of 20 m/s from the top of the multistorey building. The height of the point from where the ball is thrown 25 m from the ground. How long will it be before the ball hits the ground? (Take, g = 10 m/s2). 
HARD
9th ICSE
IMPORTANT

A car accelerates from 6 ms-1 to 16 ms-1 in 10 s. Calculate (i) the acceleration and (ii) the distance covered by the car in that time.

HARD
9th ICSE
IMPORTANT

Points P, Q and R are in a vertical line such that PQ=QR. It allows a ball at P to fall freely. What is the ratio of the times of descent through PQ and QR?