Acrate with a mass of 186 kg sits flat on a horizontal surface. if the person slides the crate with constant velocity across the floor with a force of 273 n, what is the coefficient of kinetic friction between the crate and the floor?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

For which pair of objects would adding the same a

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.