Question

1) A train is travelling at a speed of 90 km per hour. Brakes are applied so as to produce a uniform acceleration of 0.5 metre per second square .Find how far the train will go before it is brought to rest?

2) a trolley while going down on inclined plane has an acceleration of 2 cm per second square what will be its velocity 3 s after the start?

3)a racing car has a uniform acceleration of 4 metre per second square what distance will it cover in 10 seconds after start ?

4) a stone is thrown in a vertically upward direction with a velocity of 5 metre per second if the acceleration of the stone during its motion is 10 metre per second square in the downward direction what will be the height attained by the stone and how much time will it take to reach there?

Answer 1

1)50s

2)6cm/s^2

3)200m

4)0.5s,25/20m