Answer:
![W=-183.1\ J](https://tex.z-dn.net/?f=W%3D-183.1%5C%20J)
Explanation:
Given:
force applied, ![\vec{F} =(33 N)\hat{i} - (41 N)\hat{j}](https://tex.z-dn.net/?f=%5Cvec%7BF%7D%20%3D%2833%20N%29%5Chat%7Bi%7D%20-%20%2841%20N%29%5Chat%7Bj%7D)
displacement caused, ![\vec{s} = (-9.4 m)\hat{i} - (3.1 m)\hat{j}](https://tex.z-dn.net/?f=%5Cvec%7Bs%7D%20%3D%20%28-9.4%20m%29%5Chat%7Bi%7D%20-%20%283.1%20m%29%5Chat%7Bj%7D)
<u>Work done by the force on the cart:</u>
![W=\vec F.\vec s](https://tex.z-dn.net/?f=W%3D%5Cvec%20F.%5Cvec%20s)
![W=[(33 N)\hat{i} - (41 N)\hat{j}].[(-9.4 m)\hat{i} - (3.1 m)\hat{j}]](https://tex.z-dn.net/?f=W%3D%5B%2833%20N%29%5Chat%7Bi%7D%20-%20%2841%20N%29%5Chat%7Bj%7D%5D.%5B%28-9.4%20m%29%5Chat%7Bi%7D%20-%20%283.1%20m%29%5Chat%7Bj%7D%5D)
![W=-310.2+127.1](https://tex.z-dn.net/?f=W%3D-310.2%2B127.1)
![W=-183.1\ J](https://tex.z-dn.net/?f=W%3D-183.1%5C%20J)
Negative work means that the force and displacement have an obtuse angle between them.
D. adding one student to the team on the left
Answer:
a) force = mass * acceleration
so,
F=87*9.8
=852.6 N (newtons)
b) in the real world, the force affecting the rste of fall is most likely Air Resistance!
Answer:
your body loses water from the kidneys through the urine