A loaded penguin sled weighing 90 N rests on a plane inclined at 20掳 to the horizontal. Between the sled and t?

(a) What is the minimum magnitude of the force F, 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 block up the plane at constant velocity?A loaded penguin sled weighing 90 N rests on a plane inclined at 20掳 to the horizontal. Between the sled and t?The textbook uses the same question as an example on pg 310, step by step, with the answer right there.