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JAMB - Physics (1981 - No. 28)
A body falls freely under gravity (g = 9.8ms
-2
) from a height of 40m on to the top of a platform 0.8m above the ground. Its velocity on reaching the platform is
784ms
-1
80ms
-1
78.4ms
-1
39.2ms
-1
27.7ms
-1
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