Question

a body falls freely for 4 second the distance it falls is------------ *​

Answer 1

Answer:

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Answer 2

QUESTION:-

a body falls freely for 4 second the distance it falls is-

EXPLANATION:-

• Initial velocity=0 m/s  (FALLS FROM  REST)
• Acceleration=9.8 m/s²
• Time= 4 s
• Height=?

Let's apply the 2nd equation of motion(UNDER FREE FALL)

$\bf\;H=\frac{1}{2}at^2$

Where,

H=Height

a=acceleration due t gravity

t=time taken

Let's put the data of the given question in the formula  

H=1/2×9.8×4²

H=4.9×16

H=78.4 m

So the heigth attained is 78 .4 meres

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