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Zigmanuir [339]
3 years ago
5

A bicyclist accelerates from a stop to a speed of 12m/s in 3 seconds.what is her acceleration

Physics
1 answer:
AVprozaik [17]3 years ago
8 0

Answer:

4m/s2

Explanation:

acceleration=v-u/t...v=12m/s,u=0m/s,t=3sec

a=12-0/3

=4m/s2

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Answer:

a) v = 141.9 m/s

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Explanation:

a) How fast was he moving in meters per second?

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Hence, the jet ski is moving at 141.9 meters per second.

b) How fast was he moving in miles per hour?

v = \frac{d}{t} = \frac{1000 m}{7.045 s} = 141.9 m/s*\frac{3600 s}{1 h}*\frac{1 mile}{1609.34 m} = 317.4 miles/h      

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I hope it helps you!

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