A sniper is sitting on top of a tower at a height of 60 ft. There are four work- ers K,L,M and N standing at a distance of 96ft,90ft,82ft, and 75ft respectively from the base of the tower. The heights of K,L,M , and N are 6ft,5.5ft,5.7ft, and 5.2ft respectively. The sniper misfires a bullet at an angle θ with the horizontal. Since the range covered by the bullet is short, the path of the bul- let is assumed to be a straight-line path. If tanθ=23
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Only K and N are Safe
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If tan = 2/3 then the angle made with horizontal is 33.69
This implies the angle made with verticle is 56.309
So, if the bullet fires from 60ft, Applying it should reach a distance of 90ft. (Tan =3/2 for verticle) (3/2= ft/60 therefore ft = 90ft) This eliminates K and K is safe.
Since the shot is fired 90ft L is directly a target at foot. So L is not safe
For M - (2/3 = x/82 this implies x = 54.66) But in reality height is 60ft. Difference is 5.4 but L is 5.5ft so L is directly shot in head.
And for N, he is safe If you imply the same above logic
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