A bus is moving with a speed of 18 kilometre per hour it comes to rest in 3 second on the application of brakes find the retardation​, assuming it to be uniform.

A car travelling at a speed of 10m/s stops in 4s after the application of brakes. If we assume the retardation to be constant. Find the retardation.

A car is moving at a speed of 18 km . It starts retarding uniformly at 1m/s and cover to rest. Find the distance travelled.

A car travelling at a speed of 10m/s stops in 4s after the application of brakes. If we assume the retardation to be constant. Find the distance travelled during this time.

A car of 1000 kg moving with a velocity of 30 m//s stops with uniform acceleration after covering a distance of 50 m on application of brakes. Find the force applied by the brakes on the car and also work done.

A train is moving at a uniform speed of 75 km/hour : Find the time required to cover a distance of 250 km.

A train is travelling at a speed of 90 kmh^-1 . Brakes are applied so as to produce a uniform acceleration of -0.5ms^(-2) . Find how far the train will move before it is brought to rest?

The cost of fuel for running a bus is proportional to the square of the speed generated in km/h. It cost Rs 48 per hour when the bus is moving with a speed of 20 km/h. What is the most economical speed if the fixed charges are Rs 108 for one hour, over and above the running charges?

A car moving along a straight highway with speed of 126 km h^-1' is brought to a stop within a distance of 200 m. What is the retardation of the car (assumed uniform), and how long does it take for the car to stop ?