Question

What is the change in potential energy with respect to the ground of a 0.55 g son of a leech (a very effective fly for steelhead originally conceived by Mr Crane) initially cast straight up 4.0 m?

a. 22 J b. 9.81 J c. 0.022 J d. 0.0054 J

Answer 1

We will use Potential Energy Formula

Potential Energy = mass × gravitation × height

PE = 0,55 × 10 × 4

PE = 22 J (A)