I would choose the option B.
F = ma
a = 75 / 25 = 3 m/s^2
That's what scientists and other technical people call the object's "<em>volume</em>".
4
Just divide 12 by 3, so if it takes 3 seconds, then every second, it goes up 4.
Answer:
the correct one is C
Explanation:
For this exercise we must use the work definition
W = F. s
Where the bold characters indicate vectors and the point is the scalar producer
W = F s cos θ
Where θ is the angles between force and displacement.
Let us support this in our case. The cable creates an upward tension and with the elevator going down the angle between them is 180º so the work of the cable on the elevator is negative.
The evade has a downward force, its weight so the force goes down and the displacement goes down, as both are in the same direction the work is positive
When examining the statements the correct one is C
