A vehicle is moving along the positive x direction, if sudden brake is applied, then
A. frictional force acting on the vehicle is along negative x direction
B. frictional force acting on the vehicle is along positive x direction
C. no frictional force acts on the vehicle
D. frictional force acts in downward direction
Answer:A
A vehicle is moving along the positive x direction, if sudden brake is applied, then
A. frictional force acting on the vehicle is along negative x direction B. frictional force acting on the vehicle is along positive x direction C. no frictional force acts on the vehicle D. frictional force acts in downward direction