A50-kg crate is initially at rest on a horizontal floor. a person pushes horizontally with a constant force of 250 n. the maximum static frictional force between the floor and the crate is 275 n. what is the frictional force on the crate while the person pushes on it?

250 N

Explanation:

m = Mass of cart = 50 kg

F = Pushing Force = 250 N

g = Acceleration due to gravity = 9.81 m/s²

μ = Coefficient of friction

N = Weight of cart = mg

N = 50×9.81

N = 490.5 N

Here it can be seen that the pushing force is less than the static frictional force so the crate will not move

∴ The frictional force on the crate while the person pushes on it is 250 N

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.