Question

Please help me to find answer for this question

A skier of mass 50kg stands at A at the top of a ski jump. he takes off at A for his jump to B. calculate the change in his gravitational potential energy between A and B

Answer 1

B.cal.the change in his gravitational potential energy between A andB

Answer 2

You are not given graph, but here is your answer:-


Given,
m = 50 kg, h = 75 m, h = 60 m
At point A, PE = mgh = 50 x 10 x 75 = 37500 J

At point B, PE mgh = 50 x 10 X 60 = 30000 J

Change in PE = PE, -PE, = 37500- 30000 = 7500 J