Question

Paul drops a stone from a bridge that is 20m high above the water, ignore air resistance and calculate the velocity at which the stone will hit the water under the bridge

Heylo

Answer 1

Answer:

v=20m/s

Solution:

Correct option is B)

Distance (s) =20 m

Initial velocity =0 m/s

g=10 m/s ^2

By using the formula:

v ^2 =u^ 2+2as

v ^2 =0^2+2×10×20

v^2=400

v^2= root 400

v=20m/s

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