Question

a tourist threw a rock with an initial velocity of 80.0m/s(down). Determine the velocity and displacement of rock at 4.0s(Remember the v is down and must become a 8.0m/s)​

Answer 1

Answer:

s = ut + 1/2at²

s = 0 + 20/2

s = 10m

v = u + at

v = 4 × 10

v = 40m/s

Explanation:

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