Respuesta :

since the block is not moving, it only has potential energy and no kinetic energy.
energy = mgh = 8 x 9.81 x 20 = 1569.6J
Ritmeks

The answer is 1568 joules

The first step is to write out the parameters in the question

mass= 8 kg

height= 20 m

acceleration= 9.8

The energy can be calculated as follows

= mgh

= 8×9.8×20

= 1568

Hence the energy is 1568 joules

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