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ICSE Class 9 Answered

a body freely falling from certain height.show graphically the relation between the distance fallen and square of time
Asked by sandipacme1 | 26 Jun, 2022, 05:02: PM
Expert Answer
 

It will be a straight line graph with zero as the intercept.
We know,
s = ut + 1/2 at2 
u =0 ( as the ball is thrown downward, initial velocity is zero)
Thus,
s= 0 + 1/2 gt2 ...(a=g when force acting in direction of gravity)
Thus,
sα t2 
 
Thus, distance fallen is directly proportional to square of the time taken to reach the ground. 
g =acceleration due to gravity =constant = 9.8 m/s2 

Answered by Shiwani Sawant | 27 Jun, 2022, 12:28: PM

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