Question

A man carries a load of 600N on his head and walks a distance of 100m across a football ground work done was……
a.600j
b.0j
c.6000j
d.60000j

Answer 1

Answer:

D) 60000 J OR 60000 Nm

Explanation:

WORK DONE = FORCE X DISTANCE

WORK DONE = 600 X 100

WORK DONE = 60000 J OR 60000 Nm

Answer 2

Answer:

The answer will be 0 J.

Explanation:

Given that;

                 Weight = 600N;

                 distant = 100 m;

                  cos 90 = 0;

Here, we took cos Θ = 90 because the motion is forward and force is downward.

We know that ;

                      Work done = Force * Distant * cos 90;

Now put ll the value in the formula;

Hence,              W = 600 * 100 * 0;

                               = 0 J;

That's all.