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A ball is thrown up with a velocity of 20m/s^-1 what is the time taken of the flight, neglecting the air resistance

Posted by Raj Shree 3 years, 1 month ago

CBSE > Class 09 > Science

1 answers

Sia ? 3 years, 1 month ago

Given:-

Velocity of the ball through which it is thrown

Acceleration due to gravity (g)

To find:-

The time of the flight, neglecting the air resistance.

Solution:-

When the body comes back to the initial position, the displacement s = 0

We know that,

s = ut – 1/2gt

s = ut – 1/2gt 0 = ut – 1/2gt ut = 1/2gt

t = 2u/g. Here ‘t’ is the time of flight, i.e.,

Therefore, Time of flight, t =

Thus, time of flight neglecting the air resistance=4s

0Thank You

ANSWER

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CBSE > Class 09 > Science