Question

The value of a freely falling body from top of a tower is
a. -9.81 cm/s?
b. 9.81 cm/s?
C.-9.81 m/s?
d. 9.81 m/s
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Answer 1

Answer:

a is the answer

Explanation:

Answer 2

Answer:

The velocity of a body freely falling from the top of the tower is $9.81ms^{-1}$.

Therefore the option d is correct.

Explanation:

We know that the value of  $g=9.8ms^{-2}$ which is gravitational acceleration.

Consider that we have drop a body from the top of the tower. The value of the velocity will increase  $9.81ms^{-1}$ with every single second. The velocity of body changes as:

• First second, $v=9.81ms^{-1}$
• Second second, $v=(9.81+9.81)ms^{-1}=19.62ms^{-1}$
• Third second, $v=(19.62+9.81)ms^{-1}=29.43ms^{-1}$ and so on.