Force of friction always acts on moving objects and its direction shall be ____
A. On any direction
B. Along the direction of motion
C. Perpendicular to the direction of motion
D. Opposite to the direction of motion
Answer:D
Force of friction always acts on moving objects and its direction shall be ____
A. On any direction B. Along the direction of motion C. Perpendicular to the direction of motion D. Opposite to the direction of motion