Question

a 35kg TV is hosted up to the third floor of an apartment 20m above the ground. how much workwas performed to raise the TV to the third floor

Answer 1

Data:
m (mass) = 35 Kg
h (height) = 20 m
use: g (gravity) ≈ 10 m/s²

In this case the work will be → W = P*h, being: P = m*g, we have:
W = m*g*h → formula

Solving:
W = m*g*h
W = 35*10*20
W = 7000 Joules