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Sloan [31]
2 years ago
11

A hockey puck slides 55.0 m along the length of the rink in just 1.25 s. The slight friction between the puck and the ice provid

es a uniform acceleration. If the puck's final speed is 43.2 m/s, what is its initial speed? 31.4 m/s?​
Physics
1 answer:
topjm [15]2 years ago
3 0

Answer:

44.8 m/s

Explanation:

Use the Initial Speed Formula:

InS = 2(d/t) - Final Speed

InS = 2(55/1,25) - 43.2

InS = 2.44 - 43,2

InS = 88 - 43,2

InS = 44.8 m/s

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5 0
3 years ago
3) How far will 20 N of force stretch a spring with a spring constant of 140 N/m?
muminat

Answer:

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140= 20 * m

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4 0
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