What is retardation ?

A body has an acceleration of -4ms^(-2) . What is its retardation?

(Answer the following questions briefly and to the point :) A constant retarding force of 100 N is applied to a body of mass 10 kg moving initially with a speed of 30 ms^(-1) . What is the retardation of the body ?

A car moving with a speed of 126 kmh^-1 is brought to stop within a distance of 200 m. What is its retardation and how long it takes for the car to stop ?

A car moving along a straight highway with a speed of 72 km h^(-1) is brought to a stop within the distance of 100 m . What is the retardation of the car and how long does it take for the car to stop ?

A car moving along a stainght highway with a speed of 72 kmh^(-1) is brought to a stop within a distance of 100m. What is the retardation of the car and how long does it takes for the car to stop ?

A car moving aling 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 ) ans how doest it take fro the car to stop ?

(a) Draw distance time graph when a body is at rest. How is the graph modified when the body is moving with a uniform velocity ? (b) A car moving at 36 km//h is brought to rest in 0.1 km . What is the retardation ?

A train moving at 54 "km.h^(-1) is brought to rest in 1 min on application of brakes. What is the retardation of the train? Also find the distance travelled by the train after application of the brakes.

A car moving along a straight highway with a 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?