The skier slid down a 40 m long mountain in 5 seconds. Find acceleration and final speed.
| December 16, 2020 | education
v = s / t
40m / 5s = 8 m / s – average speed of the skier.
initial speed v0 = 0.
final speed v ‘= 16 m / s
acceleration is calculated by the formula:
a = ∆v / ∆t
a = 16 m / s ÷ 5s = 3.2 m / s2
Answer: a = 3.2 m / s2, final speed v ‘= 16 m / s.
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