Draw a freebody diagram showing all the forces on the crate

Draw a free-body diagram showing all the forces on the crate if the conveyer belt runs to the right at constant speed. Draw the force vectors with their tails at the dot. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded. Draw a free body diagram showing all the forces on the crate if the conveyer belt ts speeding up to the right. Draw the force vectors with their tails at the dot. The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded.

Solution

Yes you are correct. In the 1st case as there is no acceleration, so the net force will be zero. So if there is no friction the weight and the normal force will balance each other, and if there is somem friction then there will be one eual and opposite force. In the 2nd case there will an unbalanced force to the right.