a wooden crate has a mass of 150 kg,. the crate is on a flat surface with a coefficient of static friction of 0.3, and a coefficient of kinetic friction of 0.2. you are trying to push the crate horizontally with a force of 100 n. what force do you need to apply to the crate (parallel to the ramp’s surface) to keep it moving at constant speed up the ramp? the ramp has the same coefficients of friction as the flat surface.
