Question

A body is projected upwards with a velocity of 25m/s.find it's velocity when it reached 20m
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Answer 1

Answer:

15m/s

Explanation:

u=25 m/s

s= 20 m

g= -10 m/s²

v=?

we have

v²=u²+2gh

v²= 25² + 2*(-10)*20

v²= 625-400

v² =225

v = 15 m/s