Recall that

At its maximum height
, the toy will have 0 vertical velocity, so that


For the toy to reach this maximum height, it takes time
such that

which means it takes twice this time, i.e.
, for the toy to reach its original position.
The velocity of the toy when it falls 1.0 m below its starting point is



where we took the negative square root because we expect the toy to be moving in the downward direction.
The right answer is "Strong nuclear force"
Answer:
14 seconds
Explanation:
because you dropped it and it takes 14 seconds