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aalyn [17]
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?
Physics
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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Answer:

Decreases to half.

Explanation:

From the question given above, the following data were obtained:

Initial mass (m₁) = m

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Finally, we shall determine the ratio of a₂ to a₁. This can be obtained as follow:

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