Question

a man weighing 70 kg carries a weight of 10 kg on the top of a tower hundred metre height calculate the work done by the man if the value of g is 10 metre per second square ​

Answer 1

Answer:

Hence, the total work done by the man, carrying the additional weight, in reaching the top of the tower is equal to 8000 Joules.

Step-by-step explanation:

Given,

Mass of man = 70 kg

Weight carried = 10 kg

Height above ground h = 100 m

Work done =???

Total mass at top of tower = 70 + 10

M = 80 kg

For a body of mass m to raise to height h above earth,

Work done = potential energy stored - M xgxh =

Let g = 10 ms-2

So, work done will be = 80×10×100

= 80,000 J

= 80 KJ