What work needs to be done by lifting a 20 kg kettlebell with an acceleration of 0.2 m / s

What work needs to be done by lifting a 20 kg kettlebell with an acceleration of 0.2 m / s squared to a height of 1.5 meters?

Initial data: m (mass of the weight to be lifted) = 20 kg; a (acceleration with which the weight moved) = 0.2 m / s2; h (the height to which you want to lift the weight) = 1.5 m.

Reference data: g (acceleration due to gravity) = 9.8 m / s2.

1) The force that was applied to lift the weight: m * a = F – m * g, whence F = m * a + m * g = m * (a + g) = 20 * (0.2 + 9.8) = 200 N.

2) Work when lifting a weight: A = F * S = F * h = 204 * 1.5 = 300 J.

Answer: To lift a kettlebell, you need to do a work of 300 J.