A mass M= 40 kg sled is moved across a frozen lake at constant velocity by pulling an attached rope at a F direction 0 = 30 above the horizontal. The ice has a coefficient of kinetic friction of k= 0.2. M (a) (10 points) Draw a free-body diagram for the sled. Your arrows must be of the correct length. (b) (15 points) Find the applied force F necessary to pull the sled at a constant velocity.