Question

.A train starting from rest, picks up a speed of 20 m/s in 200 s. It moves at the same speed for the next 500 s. It is then brought to rest in the next 100 s. (i) Plot a speed time graph. (ii) Calculate the rate of uniform acceleration. (iii) Calculate the rate of uniform retardation. (iv) Calculate the distance covered by the train during retardation. (v) Calculate the average speed during retardation ​

Answer 1

Answer:

.A train starting from rest, picks up a speed of 20 m/s in 200 s. It moves at the same speed for the next 500 s. It is then brought to rest in the next 100 s

Answer 2

Answer:

• Speedometer, instrument that indicates the speed of a vehicle, usually combined with a device known as an odometer that records the distance traveled.