The cyclist drives down the hill in a straight line with uniform acceleration. During the descent, the cyclist’s
| December 26, 2020 | education
The cyclist drives down the hill in a straight line with uniform acceleration. During the descent, the cyclist’s speed increased by 10ms2. Cyclist acceleration 0.5ms2. How long does the descent take?
We use the speed formula for uniformly accelerated motion
U = u + at
Since the cyclist was moving down the hill, the initial speed was 0
10 = 0.5 * t
t = 20 s
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