An object is thrown horizontally from a point 'A' from a tower and hits the ground 3s later at B. The line from ‘A’ to ‘B’ makes an angle of 30º with the horizontal. The initial velocity of the object is: (take g = 10 m/s 2 )
A
m/s
B
15 m/s
C
10 m/s
D
m/s
Text Solution
Verified by ExpertsThe correct answer is:
A
AC = 
gt 2 = 45 m
BC = 45 
m = u.t
u = 
= 15 
m/s.
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