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3 years ago

8

A roller coaster car rapidly picks up speed as it rolls down a slope. as it starts down the slope, its speed is 4 m/s. but 3 sec

onds later, at the bottom of the slope, its speed is 22 m/s. what is its average acceleration?

1 answer:

Arisa [49]3 years ago

8 0

Vi = 4 m/s
vf = 22 m/s
t = 3s
a = ?

vf = vi + a * t
vf - vi = a * t
a = (vf - vi) / t
a = (22 - 4) / 3
a = 6 m / s^2

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For this case, the first thing you should know is that the length of a football field is around 100 meters.

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Applying the conversion we have:

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Let $v$ is the velocity of the truck immediately after the collision. The momentum of the system remains conversed.

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Freezing point of solvent = $0^{\circ}$ C

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