Can someone help me A 5kg box slides up an inclined plane surface, with an initial speed of 5.00 m/s. The plane makes a 30 degrees angle with horizontal. The coefficient of friction is .137. Assume g = 9.80 m/s^2. A) what is the magnitude of the acceleration of the box? B) What is the total work done by gravity on the box, from the start position, when the box has come to a stop?