Answer:
<em>W= 47</em>
Explanation:
Given:
m = 72 kg
F = 165 N along horizontal
s = 2.8 m
\mu = 0.21
The net force acting on the box is
W= 165-(0.21 * 72 * 9.81)) * 2.8
W= 46,68384
W= 47
Because of the gravity on earth, and the momentum they get from spinning around the planet.
It would be static friction which is what you have to overcome when an object is not in motion. When you move an object friction works against it like gravity and air resistance. I hope this helps!
Progressive overload is the gradual increase in stress to which we subject the body during training, where time, intensity and frequency are dimensions of it.
<h3>What is progressive overload?</h3>
It is a training principle that emphasizes a progressive intensification of stress on the muscles.
It involves the systematic application of training stimuli that force the body to adapt and grow by manipulating the variables of frequency, time and intensity.
Therefore, we can conclude that progressive overload is the gradual increase in stress to which we subject the body during training, where time, intensity and frequency are dimensions of it.
Learn more about dimensions of progressive overload here: brainly.com/question/14614199