Question

. State whether following motions show acceleration or
retardation ?
(i) Brakes are applied on moving car to stop the car.
(ii) A car gains the speed from 30 km/hr to 60 km/hr.
(iii) A stone is dropped from the top of a building.
(iv) A stone is thrown vertically up.
(v) A rocket is fired with its engine on.​

Answer 1

Answer:

option a

Explanation:

motion always show acceleration

Answer 2

Answer:

1=retardation

2=acceleration

3=acceleration

4=retardation

5=retardation