Physics-
General
Easy

Question

An aero plane moving horizontally at a speed of 200 blank m divided by s and at a height of 8.0 cross times 10 to the power of 3 end exponent blank m is to drop a bomb on a target. At what horizontal distance from the target should the bomb be released

  1. 7.234 blank k m    
  2. 8.081 blank k m    
  3. 8.714 blank k m    
  4. 9.124 blank k m    

The correct answer is: 8.081 blank k m


    Horizontal distance travelled by the bomb S equals u cross times t
    equals 200 cross times square root of fraction numerator 2 h over denominator g end fraction end root equals 200 cross times square root of fraction numerator 2 cross times 8 cross times 10 to the power of 3 end exponent over denominator 9.8 end fraction end root equals 8.081 blank k m

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