Two lifeguards pull on ropes attached to a raft. If they pull in the same direction, the raft experiences a net force of 334 N to the right. If they pull in opposite directions, the raft experiences a net force of 106 N to the left.
a. Draw a free-body diagram representing the raft for each situation.
b. Find the force exerted by each lifeguard on the raft for each situation. (Disregard any other forces acting on the raft.)