Question

A ball is thrown vertically upwards. it returns 6s later. calculate:(1)the greatest height reached by the ball, and(2) the initial velocity of the ball

Answer 1

hi friend
here's your answer looking for

so, to reach Highest point
t = 3sec
v= 0m/s
a=-10 m/s^2


so, v=u+ at

0 = u +(-10)3

u= 30m/s

so, intial velocity = 30m/s

s= ut + 1/2at^2

s= 30×3+1/2×(-10)(3)^2

s=90-45=45 m

hence , height = 45 m
and, intial velocity = 30 m/s

hope it's helpful to you

From brainly star Amaytripathi19

Answer 2

Explanation:

45 m and 30 ms‐¹ are the answers