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24/10/2021 6:34 pm
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A cheetah starts from, rest, and accelerates at 2 m/s2 for 10 seconds. Calculate:
(a) the final velocity
(b) the distance travelled.
1 Answer
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24/10/2021 7:12 pm
Initial velocity, u = 0 m/s
Final velocity, v = ?
Acceleration, a = 2m/s2
Time, t = 10s
(a) Using, v = u + at
v = 0 + 2 x 10 = 20 m/s
(b) Distance travelled is
s = ut + \(\frac{1}{2}at^2\)
s = 0 x 10 + \(\frac{1}{2}\)x 2 x 10 x 10
s = 0 + 100 = 100 m