A 15.0-kilogram object is moving at 7.50 meters per second on a horizontal, frictionless surface. What is the total work that must be done on the object to increase its speed to 11.5 meters per second? A. 422 J
B. 570 J
C. 120 J
D. 992 J

(Someone please help, I can’t move on with my exam until I answer this and I have no clue how to do it)

Observations show that interstellar clouds can have almost any shape and

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?

Ajoint produces movement when its angle decreases. which type of movement is it?