Asked by heaaaavy
a crate mass 20 kg is being pushed by a person with horizontal force of 63 N, moving with a constant velocity [E]. find the force of kinetic friction.
Answers
Answered by
Cartoon96
Force friction is 63 N. Since the velocity is constant, there is no acceleration, and no force trying to prevent the crate from moving.
F is given as F = ma.
F is the net force: Fa (force applied) - Ff (force friction). If there is no acceleration, 'a' becomes zero, causing mass to cancel out as well, leaving you with F = 0, which means there is no change in the forces acting on the crate.
F is given as F = ma.
F is the net force: Fa (force applied) - Ff (force friction). If there is no acceleration, 'a' becomes zero, causing mass to cancel out as well, leaving you with F = 0, which means there is no change in the forces acting on the crate.