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Advocard [28]
3 years ago
12

Q 1. How does friction affect the mechanical energy of a system? Q 2. A roller coaster is at the stop of a hill and rolls to the

top of a lower hill. If mechanical energy is constant, then on the top of which hill is the kinetic energy from the roller coaster motion greater?
Physics
1 answer:
Vaselesa [24]3 years ago
8 0

Answer:

  1. Friction lowers (decreases) the kinetic energy which in turn decreases the mechanical energy of a system.
  2. At the top of the second hill.

Explanation:

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Answer:

Explanation:

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2 years ago
If a cart of 10 kg mass has a force of 5 newtons exerted on it, what is its acceleration? m/s2
Elza [17]

Answer:

= 0.5 m/s²

Explanation:

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Therefore;<em> F = ma , where F is the Force, m is the mass and a is the acceleration.</em>

<em>Thus; a = F/m</em>

<em>but; F = 5 N, and m = 10 kg</em>

<em>  a = 5 /10</em>

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(I copied this from betterhelp.com)
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