A. To find work we need to know F and S; to find power we need to know F and V
After x seconds, an object will fall
![\frac{1}{2}at^2](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dat%5E2)
where a is acceleration due to gravity and t is time
so when t=3.3
the distance it will fall is
![(\frac{1}{2})(9.8\frac{m}{s^2})(3.3m)^2](https://tex.z-dn.net/?f=%28%5Cfrac%7B1%7D%7B2%7D%29%289.8%5Cfrac%7Bm%7D%7Bs%5E2%7D%29%283.3m%29%5E2)
=53.361m
it will fal 53.361 meters
Answer:
B
Explanation:
Density is about how closely compact molecules are. (^-^)
Vertical forces:
There is a force of 579N acting upward, and a force of 579N
acting downward.
The vertical forces are balanced ... they add up to zero ...
so there's no vertical acceleration.
Not up, not down.
Horizontal forces:
There is a force of 487N acting to the left, and a force of 632N
acting to the right.
The net horizontal force is
(487-left + 632-right) - (632-right - 487-right) = 145N to the right.
The net force on the car is all to the right.
The car accelerates to the right.