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.
Answer:
120 mph
Explanation:
Given:
Δx = 0.25 mi
v₀ = 0 mi/s
t = 15 s
Find: v
Δx = ½ (v + v₀) t
0.25 mi = ½ (v + 0 mi/s) (15 s)
v = 0.0333 mi/s
v = 120 mi/h
Answer:
False
Explanation:
Sharing valence electrons to make a bond creates a covalent bond, not an ionic bond.