Question

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Answer 1

Answer:

Velocity= ±14m/s and Time = 1.42s

Explanation:

Displacement(s) = 10m

g = 9.8m/s²

Here initial velocity(u) = 0

v=? , t=?

Using formula s = ut + 1/2gt²

10 = 9.8/2 × t²

So t = 1.42

Using formula v² = u² + 2gs

v² = 196

So v= ±14