Plz solve the physics question plz its urgent?

Question

An astronaut on the moon throws a 5.0 kg wrench vertically upwards with an initial speedof 15 m/s . The acceleration due to gravity on the surface of the moon is one-sixth that on the surface of the earth. What is the maximum height reached by the wrench?

Answer 1

Use the conservation of energy. On launch, the wrench has a kinetic energy of ½mv², and at it's maximum height a potential energy of mgh.

PE = KE

mgh = ½mv²

h = v²/2g

Where g is the acceleration of gravity on the moon .

Answer 2

u=15

v=0

a=-g/6

0=225-gs/3

gs=675

s=675/g

Substitute d value of acc. due to gravity (Of earth) in place of g.

Answer 3

It's the same equation as that on earth except you replace g with g/6