A40 kg crate is pushed across a floor by a force of 10 n at an angle of 35° above the horizontal. determine the normal force exerted by the floor on the crate.

389.26 N

Explanation:

Given

mass of crate

Force applied

inclination of force

Usually Normal reaction is equal to the weight of the object but here a force is pulling crate in upward direction so effective weight is less than mg

From diagram Normal reaction is

Same Normal reaction is exerted by crate to the ground and by ground to the crate.

2b2t

explanation:

2b2t