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A bomb is dropped from an aeroplane movi...

A bomb is dropped from an aeroplane moving horizontally at constant speed. When air resistance is taken into consideration, the bomb

A

falls on the earth exactly below the aeroplane

B

falls on the earth behind the aeroplane

C

falls on the earh ahead of the aeroplane

D

flies with the aeroplane

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The correct Answer is:
To solve the problem of a bomb dropped from an aeroplane moving horizontally at a constant speed while considering air resistance, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Understanding the Initial Conditions**: - The aeroplane is flying horizontally with a constant speed \( V_0 \). - The bomb is dropped from the aeroplane, meaning it initially has the same horizontal velocity \( V_0 \) as the aeroplane. 2. **Vertical Motion**: - Once the bomb is dropped, it begins to fall under the influence of gravity, with an acceleration \( g \) acting downwards. - The initial vertical velocity of the bomb is 0 m/s. 3. **Horizontal Motion with Air Resistance**: - In the absence of air resistance, the bomb would continue to move horizontally at speed \( V_0 \) and would land directly below the point of release. - However, when air resistance is considered, it acts against the motion of the bomb. This resistance will reduce the horizontal velocity of the bomb as it falls. 4. **Effect of Air Resistance**: - As the bomb falls, air resistance will cause it to decelerate in the horizontal direction. - This means that while the aeroplane continues to move forward at speed \( V_0 \), the bomb will not maintain this speed due to the drag force acting on it. 5. **Conclusion**: - Because of the air resistance, the bomb will land behind the aeroplane. The aeroplane moves forward while the bomb falls, resulting in the bomb landing at a point that is not directly below the aeroplane but rather behind it. ### Final Answer: The bomb falls on the earth behind the aeroplane. ---

To solve the problem of a bomb dropped from an aeroplane moving horizontally at a constant speed while considering air resistance, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Understanding the Initial Conditions**: - The aeroplane is flying horizontally with a constant speed \( V_0 \). - The bomb is dropped from the aeroplane, meaning it initially has the same horizontal velocity \( V_0 \) as the aeroplane. ...
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Knowledge Check

  • A bomb is dropped from an aeroplane moving horizontal at constant speed. When air resistance is taken into consideration, then the bomb

    A
    flies with the aeroplane
    B
    falls on earth ahead of the aeroplane
    C
    falls on earth behind aeroplane
    D
    falls on earth exactly below the aeroplane
  • For a body thrown vertically upwards, if the air resistance is taken into consideration, then the time of rise is

    A
    equal to time of fall
    B
    less than time of fall
    C
    greater than time of fall
    D
    (3/2) times the time of fall
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    A
    1 sec
    B
    7.2 sec
    C
    14.15 sec
    D
    0.15 sec
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