The gravitional potential energy, relative to the bottom of the giant drop, in joules, is (9800) times (the height of the drop in meters).
That's the PE of the empty car only, not counting any hapless screaming souls who may be trapped in it at that moment.
If Juan used a Celsius thermometer, it would tell him the Celsius temperature.
If he added 273 to that number, he'd have the "absolute" or Kelvin temperature.
Answer:
The extension of a material or a spring is its increase in length when pulled. Hooke’s Law says that the extension of an elastic object is directly proportional to the force applied to it. In other words:
Explanation:
Answer:
11.0 kg m/s
Explanation:
The impulse exerted on the cart is equal to its change in momentum:
![I=\Delta p=m\Delta v](https://tex.z-dn.net/?f=I%3D%5CDelta%20p%3Dm%5CDelta%20v)
where
m = 5.0 kg is the mass of the cart
is its change in speed
Substituting numbers into the equation, we find
![I=(5.0kg)(2.2 m/s)=11 kg m/s](https://tex.z-dn.net/?f=I%3D%285.0kg%29%282.2%20m%2Fs%29%3D11%20kg%20m%2Fs)
Answer:
velocity = distance / time taken
= 200/4
= 50 m/s
is the correct answer