A body is thrown vertically upwards and rises to a height of 10m. The velocity with the body was thrown upwards is (g=9.8 m/s2) *
16m/s
15m/s
14m/s
12m/s
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EXPLANATION.
- GIVEN
Body is thrown vertically upwards and rises
to a heights of 10 m.
To find velocity of the body was thrown
upwards.
GIVEN = [ g = 9.8 m/s² ]
According to the question,
maximum height = h = 10 m
At maximum height v = 0
initial velocity = u
Acceleration = a = -g = -9. 8 m/s²
From Newton third equation of
kinematics.
=> v² = u² + 2as
=> (0) ² = u² + 2 ( -9. 8 ) ( 10)
=> u² = 196
=> u = √196
=> u = 14 m/s
Therefore,
Velocity of the ball thrown upwards
=> 14 m/s
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