Down the Pole a fireman of mass m slides a distance d down 8 poles he starts from rest. Removes as fast at the bottom as if he had stepped off a platform a distance h s d shoves the ground and descended with negligible air resistance,
(a) What average friction force did the fireman exert on the pole? Does your answer make sense in 1he special cases of h = d and h = O? (b) Find 8 numerical value for the average friction force a 7S-kg fireman exerts, for d - 2.5 m and h - 1.0m,
(c) In terms of g. h, and d, what is 1he speed of the fireman when he is 8 distance y above 1he bottom of Ibe pole?