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yan [13]
3 years ago
5

If the swan must reach a speed of 4.7 m/s to take off and it accelerates from rest at a constant rate of 0.45 m/s2, how far, in

meters, will it travel before becoming airborne
Physics
1 answer:
mariarad [96]3 years ago
6 0

Answer:

24.54 m

Explanation:

From the following equation of motion, we can calculate the time it takes for the swan to reach the speed of 4.7m/s from rest at an acceleration of 0.45 m/s2:

v = v_0 + at

where v is the final speed, v0 = 0 m/s is the initial speed at rest, a is the acceleration and t is the time it takes

4.7 = 0 + 0.45t

0.45t = 4.7

t = 4.7 / 0.45 = 10.44 s

And the distance it covered within 10.44 s is

s = at^2/2 = 0.45*10.44^2/2 = 24.54 m

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