If a mango fruit dropped at a height of 50 meters. How long does it reach the ground? (take g = 10m/s2)
A
2 sec
B
3 sec
C
4sec
D
3.2sec
Verified Correct Answer: D.
Physical Principles & Numerical Solution
From S = ut + ½gt2
u = 0ms-1
50 = (0 × t) + ½(10)(t2)
50 = 5.0t2
t2 =50/5
t = √10
t = 3.2sec
Source: Myschool Past Questions Archive (Record #40854)