Please show your work and briefly explain your steps in the solution A loaded pe
ID: 2169791 • Letter: P
Question
Please show your work and briefly explain your steps in the solution
A loaded penguin sled weighing 80 N rests on a plane inclined at 20degree to the horizontal (Fig. 6.51). Between the sled and the plane, the co-efficient of kinetic friction is 0.15. (a) What is the minimum magnitude of the force ,parallel to the plane, that will prevent the sled from slipping down the plane? (b) What is the minimum magnitude F that will start the sled moving up the plane? (c) What value of F is required to move the sled up the plane at constant velocity? Block B in Fig. 6-52 weighs 711 N. The coefficientExplanation / Answer
=.25 * 80 *cos 20 minimum force to start = 0.15 * 80 *cos 20