Q. 5 A4.2( 107 Votes )

Solve the followi

Answer :

Given;

Time for object to reach ground (t) = 5 s;


Height of object from the ground(s) = 5m;


Acceleration due to gravity (g) =? ;


Since when Object is released from the height of 5m it will be in free fall hence its initial velocity (u) = 0;


Now, By Newton’s second equation of motion



Here u = 0, a = g, t = 5s, s = 5m;


Putting these values in the above equation we get;



.


.


.


Hence acceleration due to gravity on the planet is 0.4m/s2.


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