Question

how much weight should a diver put in order to gain a gravitational potential energy of 7.5 kj if he is going to dive at a height of 10m? he weighs 60 kg.

show your solution.​

Answer 1

Answer:

We Have,

G.PE=7.5KJ

R=10m

M=60KG

We Know that,

W= GMm/R

7.5= 6.67×10-¹¹×60×m/10

7.5×10=6.67×10-¹¹×60×m

75=6.67×10-¹¹×60×m

75/6.67×10-¹¹×60=m

6.746=m

HENCE,

The Diver should to put a weight of

6.75KG in order to gain a Gravitational

Potential Energy Of 7.5KG.