Question

d. Calculate the energy stored in a body of mass 40 kg when it is at a height of 30m.​

Answer 1

Here is your answer:-

The energy stored will be potential energy!

Formula for potential energy = mgh

where g is gravitational constant ( 10 m/s)

Hence putting the values in above formula we get

40 × 30 × 10 = 12000 joules

Your answer is 12k joules ❤

Answer 2

Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or 3D shape occupies or contains. Volume is often quantified numerically using the SI derived unit, the cubic metre.