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2 years ago

9

Fan can accelerate from the starting blocks to running 11m/s down the track in 5 seconds. What is her acceleration?

1 answer:

Firdavs [7]2 years ago

4 0

To answer this question we subtract the initial velocity from her final velocity. On the starting blocks the initial velocity was 0 m/s. Her final velocity was 11 m/s.t = 11m/s - 0 m/s, so the change in velocity is 11m/s. Time was 5 seconds.Plug it into the formula: 11 m/s ÷ 5 s= 2.2 m/s<span>2</span>

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Answer:

$t = 0.93 s$

Part b)

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Explanation:

The two components of the velocity of the ball is given as

$v_x = 4.9 cos29$

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