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Misha Larkins [42]
3 years ago
6

A sled with no initial velocity accelerates at a rate of 3.2 m/s2 down a hill. How long does it take the sled to go 15 m to the

bottom? *
Physics
1 answer:
grin007 [14]3 years ago
3 0
S = ut + 1/2 at^2
a = 3.2 m/s^2
s = 15m
Find t
15 = 1/2(3.2)t^2
15 = 3.2t^2/2
30 = 3.2t^2
30/ 3.2 = 9.38
Square root of 9.38 = 3.06
It takes 3.06 seconds
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Answer:

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(b) U=668.16\ J

Explanation:

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  • height of the slide, h=3.3\ m
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