A stone is dropped from the top of a tower and it strikes with 3 km/hr against the ground. Another stone is thrown vertically downwards from the same top of the tower with a velocity 4 km/hr. Its velocity when it strikes the ground will be
Text Solution
Verified by ExpertsThe correct answer is:
B
Case-I 
V 2 = u 2 + 2gh
(3) 2 = (0) 2 + 2gh
2gh = 9 ..........(i)
Case - II 
V 2 = 4 2 + 2gh = 2 + 9
V 2 = 25
V = 5 km/hr
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