Answer:
As the car travels up the coaster it is gaining potential energy.
Explanation:
Because It has the greatest in amount of potential energy at the top of the coaster. when the car travels down the roller coaster it obtains speed and kinetic energy.
Pulling a person down so we stick to the surface
Picture is blurry…. try re uploading it
D is the answer because of the solar phonominals
The pressure exerted by the block on the table is given by:
![p=\frac{W}{A}](https://tex.z-dn.net/?f=%20p%3D%5Cfrac%7BW%7D%7BA%7D%20%20)
where W is the weight of the box, and A is the bottom surface area of the box.
The weight of the box is: ![W=mg=(7.5 kg)(9.81 m/s^2)=73.6 N](https://tex.z-dn.net/?f=%20W%3Dmg%3D%287.5%20kg%29%289.81%20m%2Fs%5E2%29%3D73.6%20N%20)
Substituting into the first equation, we find the pressure:
![p=\frac{W}{A}=\frac{73.6 N}{0.6 m^2}=122.7 Pa](https://tex.z-dn.net/?f=%20p%3D%5Cfrac%7BW%7D%7BA%7D%3D%5Cfrac%7B73.6%20N%7D%7B0.6%20m%5E2%7D%3D122.7%20Pa%20%20%20)