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Natasha_Volkova [10]
3 years ago
9

a ball is thrown in the air at 20 m/s. ignoring redistance, what is the speed when it returns to the level at which it was throw

n?
Physics
1 answer:
inysia [295]3 years ago
6 0

Ball is projected upwards with speed 20 m/s

now using kinematics

v_f^2 - v_i^2 = 2 a\delta x

here when ball returns back to same position.

total displacement of ball will be zero.

v_f^2 - v_i^2 = 0

vf = vi

So ball will return to initial position with same speed in opposite direction.

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