On a 80 km staight road ,a bus travels the first 40km with uniform speed of 30km/h.how fast must the bus travel the next 40 km so as to have average speed of 40km/h for the entire trip?
Anushkatyagi
Asked:
December 2022
A driver takes 0.30 seconds to apply brakes .if he is driving car at a spped of 72km/hr and the brakes cause a deceleration of 5.0km/second sq.find the distance travelled by the car after he sees the need to put the brakes.