Some questions I can't get.
I can't figure out how to work these physics problems.
Question 3
An applied force of 100 N causes a 20 kg crate to accelerate across a level floor at 2 m/s2. Draw a free body diagram illustrating this situation and find the coefficient of kinetic friction between the crate and the floor.
I know that FN=FG=20*9,8=196N, and that the acceleration = FNet/Mass which means Fnet=2*20=40 but I don't know how to get the kenetic friction.
Question 4
60 N of force is applied to a 10 kg crate initially at rest on a level floor. The coefficient of friction between the crate and the floor is 0.4. Draw a free body diagram illustrating this situation and find the distance traveled and the velocity of the crate after 3 seconds.
again FN=FG=10*9.8=198N, but I don't know where to go from there.
