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Jimmy is doing an experiment to measure the height of a tall building. He drops awatermelon from the roof the building. 3.0 s later he hears the watermelon splash sound. What height of the building he had calculated. Take speed of soimd 340 m/s and air resistance, on water melon can be neglected. Take `g = 10 m//s^(2)`

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The correct Answer is:
[40.7 m]
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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Practice Exercise
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  3. Jimmy is doing an experiment to measure the height of a tall building....

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  9. Figure-1.20 shows displacement-time graphof a particle. Find the time ...

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  11. Between two stations a train starting from rest first accelerates unif...

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  12. A partical starts from rest and moves in a straight line. It travels a...

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  13. A particle starts with an initial velocity u towards + x direction wit...

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  14. A particle moves in a straight line. Figure-1.21 shows the distance tr...

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  15. The velocityof a particle that moves in the positive X- direction vari...

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  16. The acceleration vs time of a particle moving along +x direction is sh...

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  17. The displacement x of particle moving in one dimension, under the acti...

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  18. Instantaneous velocity of a particle moving in +x direction is given a...

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  19. A street car moves rectilinearly from station A to the next station B ...

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  20. A particle moves along a staight line such that its displacement at an...

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