A man with a constant time of reaction can stop his car within 30m when its speed is 72kmph and within 10m when its speed is 36kmph. What is the distance within which he can stop his car when speeding at 54 km ph ?

A man with a constant time of reaction can stop his car within 30 m when its speed is 72 kmph and within 10 m when its speed is 36 kmph.What is the distance within which he can stop his car when speeding at 54 kmph ?

A driver having a definite reaction time is capable of stopping his car over a distance of 30 m on seeing a red traffic signal, when the speed of the car is 72 km/hr andover a distance of 10 m when the speed is 36 km/hr. Find the distance over which he can stop the car if it were running at a speed of 54 km/hr. Assume that his reaction time and the deceleration of the car remains same in all the three cases.

If x is the distance at which a car can be stopped when initially it was moving with speed u, then on making the speed of the car Nu, the distance at which the car can be stopped is

A car takes 2 hours more to cover a distance of 480km when its speed is reduced by 8kmph . Find its usual speed

7.If "50m" is the distance at which a car can be stopped when initially it was moving with speed "10ms^(-1)",then on making the speed of the car "50ms^(-1)",the distance at which the car can be stopped is (retardation is same in both cases)

A car moving at a constant speed of 36 kmph moves north wards for 20 minutes then due to west with the same speed for 8(1)/(3) minutes. What is the average velocity of he car during this run in kmph

What is the change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to 72 km/h uniformly?