A hunderd metre sprinter increases her speed from rest uniformly at the rate of `1ms^(-2)` upto three quarters of the total run and covers the last quarter with uniform speed. How much time does she take to cover the first half and the second half of the run?

A 100 m sprinter in creases her speed from rest uniformly at the rate of 1. 5 ms^(-2) up to three quarters of the total run and covers the last quarter with uniform speed. How much time does she take to cover the first half and the second half of the run ?

A body dropped from the top of a tower hits the ground after 4 s. How much time does it take to cover the first half of the distance from the top of the tower?

A train is running at a uniform speed of 75 km/hour. How much time will it take to cover a distance of 350 km?

A body dropped from the top of tower covers a distance 9 x in the last second of its journey, where x is the distance covered in the first second. How much time does it take to reach the ground.

A particle starts with initial speed u and retardation a to come to rest in time T. The time taken to cover first half of the total path travelled is

A bolldropped from the top of a tower covers a distance 7x in the last second of its journey, where x is the distance coverd int the first second. How much time does it take to reach to ground?.

An athlete runs a distance of 1500m in the following manner. (i) Starting from rest, he accelerates himself uniformly at 2ms^(-2) till he covers a distance of 900m. (ii) He, then runs the remaining distance of 600m at the uniform speed developed. Calculate the time taken by the athlete to cover the two parts of the distance covered. Also find the time, when he is at the centre of the track.

Two particles A and B starts from rest and move for equal time on a straight line. The particle A has an acceleration a for the first of the total time and 2a for the second half. The particle B has an acceleration 2a for the first half and a for the second half. Which particle has covered larger distance?

An othleter runs a sidtance of 1500 m as follows , (i) He starts from rest and accelerates himself uniformly with acceleration 2 ms^(-2) till he covers a distance or 900 m . (ii) He then runs the remaining distance of 600 m with a uniform speed developed. Calculate the time taken by the athlete to cover the two parts to the distance central point of the total length of track.