Question

A woman bungee jumper jumps from the top of a bridge with a height of 75m. The length of the bungee elastic is 25m and the woman has a mass of 60kg.

(a) Calculate the potential energy of the woman as she stands on top of the bridge.
(b) Calculatethemaximumspeedthatthewomanreachesandstateat what height this will happen.

Answer 1

Step-by-step explanation:

Given:

H = 75 m

m = 60 kg

g = 9.8 m/s

__________

Wp - ?

V - ?

a) The potential energy:

Wp = m·g·H = 60·9.8·75 = 44 100 J

b) The maximum speed:

V = √ (2·g·H) = √ (2·9.8·60) = √ 1176 ≈ 34 m/s