JAMB - Physics (1982 - No. 9)
A mango fruit drops from a branch 10m above the ground, just before hitting the ground its velocity is (g = 10ms-2)
10√2ms-1
10ms-1
100ms-1
5√2ms-1
200ms-1
解释
Using, V2 = U2 + 2gs
V2 = 02 + (2 x 10 x 10)
V = 10√2ms-1
V2 = 02 + (2 x 10 x 10)
V = 10√2ms-1