Question

how much work is required to lift a 2 kg mass to a height of 10 meters?

Answer 1

Answer:

the Work done to life the mass of 2 kg to a height of 10 m is 196 J.

Answer 2

Given: mass = 2kg

           height or displacement covered - s = 10m

To Find:

Work done - W = ?

Solution:

Formula used:

Work done (W) = Force (F) × displacement (s)

Force (F) = mass (m) × acceleration (g)

Applying the above formulas:

F = mg (g = 9.8m/s²) as mass is being vertically lifted therefore, Force of Gravitation acts on it.

F = 2 × 9.8

F = 19.6 N

W = 19.6 × 10

W = 196J

Hence, work done to lift 2 kg mass to a height of 10m = 196J

if g taken as 10, then W = m × g × s = 10 × 10 ×2 = 200J