A car A is travelling on a straight level road with a uniform speed of 60 km/h. It is followed by another car B which in moving with a speed of 70 km/h. When the distance between then is 2.5km, the car B is given a deceleration of `20(km)/(h^2)`. After how much time will B catch up with A

A car A is traveling on a straight level road with a uniform speed of 60 km/h. It is followed by another car B which is moving with a speed of 70 km/h. When the distance between them is 2.5 km, the car B is given a deceleration of 20 "km/h"^2 . After what distance and time will B catch up with A

A car A is traveling on a straight level road with a uniform speed of 60 km/h. It is followed by another car B which is moving with a speed of 70 km/h. When the distance between them is 2.5 km, the car B is given a deceleration of 20 "km/h"^2 . After what distance and time will B catch up with A

A car A is travelling on a straight level road with a uniform speed of 60 km hr^(-1) . It is followed by another car B which is moving with a speed of 70 km hr^(-1) . When the distance between them is 2.5 km., the car B is given a deceleration of 20 km hr^(-2) . After what distance and time will catch up with A?

A car is moving on a straight road covers one third of the distance with a speed of 20 km/h and the rest with a speed of 60 km/h. The average speed of the car is

A car is moving on a straight road covers one third of the distance with a speed of 20 km/h and the rest with a speed of 60 km/h. The average speed of the car is

A car is moving on a straight road covers one third of the distance with a speed of 30 km/h and the rest with a speed of 50 km/h. The average speed of the car is