Question

If a 0.200-kilogram ball sits on a shelf 2.00 meters from the floor, how much mechanical energy (me) does it possess?

Answer 1

Excatly 3.92J

Answer 2

Answer : The mechanical energy it possess is, 3.92 J

Solution : Given,

Mass of ball = 0.2 Kg

Height of object raised = 2 m

When an object falls then the formula used as,

`w=mgh`

where,

w = work done

m = mass of an object

h = height of object raised

g = acceleration due to gravity =
`9.8m/s^2`

Now put all the given values in this formula, we get

`w=(0.2Kg)* (9.8m/s^2)* (2m)=3.92J`

Therefore, the mechanical energy it possess is, 3.92 J