Farmer Tamar airlifted her sheep from 1000 meters to 1,200 meters

Question

What was the change in potential energy of the sheep?

Answer:

1962 (m) J

Explanation:

Potential energy is given by

PE=mgh

Change in potential energy is given by

∆PE=mg (h2-h1)

Where ∆PE is the change in potential eneegy, g is acceleration due to gravity, h2 is final height and h1 is the initial height.

Substituting 9.81 m/s² for g, 1200 m for h2 and 1000 m for h1 then

∆PE=m*9.81 (1200-1000) = 1962m Joules

Since we are not given the mass of rhe sheep, the answer will be 1962 (m) Joules