Batman, whose mass is 78.0 kg, is holding onto the free end ofa 11.0 m rope, the other end of which is fixed to a tree limbabove. He is able to get the rope in motion as only Batman knowshow, eventually getting it to swing enough that he can reach aledge when the rope makes a 61.0° angle with the vertical. How muchwork was done by the gravitational force on Batman in thismaneuver?
I tried doing
work=Fcos??x
work=78(9.8)xcos(61)x11