ram and shyam stationed at A and B fire bullet simultaneously at C the bullet are fired from A to B at angle 53degree and 37 degree respectively with the the vertical both the bullet hit the bird simultaneously what is the value of Va if Vb is 60unit take AB is 10m
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Answer (1)
Student Expert
19th Oct, 2019
Since the bullets are fired horizontally from the same place, they have the same height.
The formula for Time is
t= (2H/g)^1/2.
since the acceleration (g) is also same for both the bullets they will reach the ground at the same time.
Thus, the time taken to reach the ground is independent of the initial horizontal speed of the bullets. Hence, both the bullets fired simultaneously in the horizontal direction from the same height will reach the ground simultaneously.
The vertical component must be
VA cos 53 = VB cos 37
Solving this VA = 60 cot 37
= 60/tan 37
=60*4/3 = 80 units.
This is the final answer. Thank you.
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