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two bullets are fired horizontally and simultaneously towards each other from roof tops of two buildings 100 m apart and of same height of 200 m with the same velocity of 25m/s.when and where will the two bullets collide |
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Answer» Answer: Both bullets will collide at 180 m above GROUND , 50 m away from each building after 2 sec Explanation: two bullets are fired horizontally and simultaneously TOWARDS each other from roof tops of two buildings 100 m apart => Both bullets TOGETHER will travel 100 m horizontal Distance Velocity of bullets are 25 m/s 25 * T + 25 * T = 100 => T = 2 sec After two secs bullets will collide Vertical Distance COVERED in 2 sec using S = ut + (1/2)gt² = 0 + (1/2)(10)*2² = 20 m 200 - 20 = 180 m above ground Both bullets will collide at 180 m above ground , 50 m away from each building after 2 sec |
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