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neonofarm [45]
3 years ago
6

a metal bal is held at rest H=65.0 cm above the floor. The ball is released with no initial velocity. How much time does it take

to hit the floor?
Physics
1 answer:
Fofino [41]3 years ago
5 0

<u>Answer: </u>

Metal ball will take 0.364 seconds to reach floor.

<u>Explanation: </u>

Initial height from ground = 65 cm = 0.65 meter

We have equation of motion , s= ut+\frac{1}{2} at^2, s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this the velocity of body in vertical direction = 0 m/s, acceleration =acceleration due to gravity = 9.8 m/s^2, we need to calculate time when s = 0.65 meter.

Substituting

0.65=0*t+\frac{1}{2} *9.8*t^2\\ \\ t = 0.364 seconds

So it will take 0.364 seconds to reach floor.

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