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2 years ago

5

What is the instantaneous velocity of a freely falling object 9.0 s after it is released from a position of rest? Express your a

nswer to two significant figures and include the appropriate units.

1 answer:

Umnica [9.8K]2 years ago

5 0

Answer:

So instantaneous velocity after 9 sec will be 88.2 m/sec

Explanation:

We have given time t = 9 sec

As the object is released from rest so its initial velocity u = 0 m/sec

We have to find its final velocity v

Acceleration due to gravity $g=9.8m/sec^2$

From first equation of motion we know that $v=u+gt$

$v=0+9.8\times 9=88.2m/sec$

So instantaneous velocity after 9 sec will be 88.2 m/sec

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