Question

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24. A ball is thrown vertically upward with speed 20 m/s
from earth's surface. Assuming x 10 m/s" Pind,
(2015)
(8) Displacement of the ball after I sec, distance traveled
and attained velocity,
(b) Displacement of the ball after 3 sec, distance traveled
and attained velocity.
Am Am 15 m mm​

Answer 1

Answer:

u(initial velocity) = 19.6 m/s

at highest point v(final velocity)=0

using v=u+at

0=19.6 - 9.8 * t

t=19.6/9.8= 2s (time to reach max height)

now using v^2 - u^2 = 2as

0 - (19.6)^2 = 2* 9.8 * s

s= 19.6*19.6/2*9.8

s=19.6 m

hope it will help you ;)..