A stone is released from a height of 80m above the ground. Calculate its velocity just before it strikes the ground. (g = 10ms\(^{-2}\))
a
25ms-1
b
40 ms-1
c
55 ms-1
d
65ms-1
e
80 ms-1
Explanation
Correct Option
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opeoluwada2005
5 years ago
when an object is falling it has intial velocity to be zero u=0
therefore, v²=u²+2gh
v=√0²+2(10)(80
v= √1600
v=40mls
im i correct? 
