Once a 26 kg crate is in motion on a horizontal floor, a horizontal force of 57 n keeps the crate moving with a constant velocity. the acceleration of gravity is 9.81 m/s 2 . what is µk, the coefficient of kinetic friction, between the crate and the floor?

Aspring with a mass of 2 kg has a damping constant 14 kg/s. a force of 3.6 n is required to keep the spring stretched 0.3 m beyond its natural length. the spring is stretched 0.6 m beyond its natural length and then released. find the position of the mass at any time t. (assume that movement to the right is the positive x-direction and the spring is attached to a wall at the left end.)

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

How is zig zagging a form of acceleration?