A crate is slid across a floor . The mass of the crate is 200kg and the coefficient of static friction is 0.30 . How much force is needed to keep the crate moving to the west with a constant velocity of 7m/s ?
A crate is slid across a floor . The mass of the crate is 200kg and the coefficient of static friction is 0.30 . How much force is needed to keep the crate moving to the east with a constant velocity of 4m/s ?