Acrate of potatoes of mass 19.5 kg is on a ramp with angle of incline 30.0° to the horizontal. the coefficients of friction are μs = 0.634 and μk = 0.339. find the frictional force (magnitude and direction) on the crate if the crate is sliding down the ramp.

95.64 N

Explanation:

Given

mass of potato is 19.5 kg

inclination of ramp

coefficient of static friction

Normal reaction on block will be N=mgcos30=165.66 N

Since crate is sliding and not moving therefore static friction acts

Sin component of weight =mgsin30=95.64

Static friction

since static friction is more therefore it adjust itself

so net frictional force will be 95.64 N

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.