1.

In the above question "(A body falls from rest. In the last second of its fall, it covers half of the total distance)" the total height of fall is :

Answer»

50 m
56 m
78.4 m
19.6 m

Solution :Here `s=4.9xxn^(2)`
or `s=4.9(2+sqrt(2))^(2)`
=56 m


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