Question

The speed with which a bullet can be fired is 150m/s calculate the maximum possible height
(approx)
A) 574m
B) 674m
C) 444m
D) 344m​

Answer 1

574 is the maximum hight

Explanation:

{Time}\:{taken}\:{by}\:{bullet}\:{to}\:{hit}\:{the}\:{target}\:{

$t = \frac{100}{1500 } = \frac{1}{15} s$

{So}\:(,)\:{vertical}\:{distance}\:{travelled}\:{by}\:{bullet}\:{in}\:{this}\:{time}(.)

$s _{y} = \frac{1}{2} gt ^{2}$

$or \: \: s _{y} = \frac{1}{2} \times 10 \times (\frac{1}{15} ) {}^{2} = 0.022m = 2.2cm$

So, the gun must be aimed at 2.2 cm above the target.

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