The really good answer is 30cm CER format
Answer:
Amazing Thanks. What about u?
Explanation:
Answer:
400 J
Explanation:
Work is done when a force that is applied to an object moves that object.
The work is calculated by multiplying the force by the amount of movement of an object
W = F * d
here the man has to work against the gravitational field. (against his weight)
F =100 N
Work done = F * d
= 100 * 4
= 400 J
Answer:
W = 750 [J]
Explanation:
The question should be related to work, work in physics is defined as the product of force by distance. In this way, we can use the following equation.

where:
F = force = 30 [N]
d = distance = 25 [m]
W = work [J]
Now replacing:
![W=30*25\\W=750 [J]](https://tex.z-dn.net/?f=W%3D30%2A25%5C%5CW%3D750%20%5BJ%5D)