Question

men washing 70 kg carries a weight of 10 kg on the top of a tower 100 m hight. calculate the work done by the men​

Answer 1

Answer:

8 × 10⁴ Nm or Joules

Explanation:

We know that the work done by a person is equal to the product of force and displacement.

This means W = F*s

Mass of man = 70 kg and mass of object = 10 kg

Thus, weight of man = 700 N and of the object 100 N

So, total weight = 700 + 100 = 800 N

Force = Weight = 800 N

⇒ W = Wt. × s

= 800 N × 100 m

= 8 × 10⁴ Nm or Joules