A) Movement of piston in a cylinder
B) A vehicle speeding
C) Running on a track
D) All of the above
Correct Answer: B
Solution :
Friction is desirable to stop or reduce speed of a speeding vehicle. When the brakes are applied in a speeding vehicle, they rub against the wheels in motion. Due to the friction between the brakes and wheels, the speed of vehicle is reduced or it may come to stop.You need to login to perform this action.
You will be redirected in
3 sec