217,193 views
12 votes
12 votes
A

A tennis ball is hit vertically
upward with a velocity of 30 ms-1.
It takes 3 s to reach the highest
point. Calculate the maximum
height reached by the ball. How
long it will take to return to
ground?

User Adolf Dsilva
by
2.4k points

1 Answer

16 votes
16 votes

h=vot-1/2gt²

h=30 x 3 - 1/2 x 9.8 x 3²

h = 45.9 m

t = 2to

t = 2 x 3 = 6s

User Jhansen
by
2.9k points