Two bullets are fired with horizontal velocities of 50m/s and 100 m/s from two guns at a height of 19.6 m .(a) after how much time and which bullet will strike first ?(b)what would be the path of the bullets?(g=9.8m/s2)
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Solution
a)Both bullets strikes ground at same time REASON:: As there is no vertical components of velocities for both bullets , it is to be taken as freely falling condition for calculating height of the tower and also for the time. Time taken to fall/ touches ground t^2=2×g×h t^2=2×9.8×19.6 t^2=2×9.8×2×9.8 t =2×9.8 t=19.6 seconds.