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You are on the roof of your school build...

You are on the roof of your school building 60m, high. You see your physics teacher 1.6 m tall walking directly towards the building at 2.m/s. You wish to throw an egg vertically down at a speed 5m/s on to your teacher's head. Where should your teacher be when you throw the egg. Neglect air resistance. Take `g = 10m//s^(2)`

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The correct Answer is:
[6 m away from school building]
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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Practice Exercise
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  4. A student goes to the a 100 m high floor of Kutubmeenar at Delhi. To v...

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  5. From the top of at all building (height27.3m), a boy throws an apple u...

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  7. A truck driver, starting with zero speed at time zero, drove in such a...

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

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  9. A train starts from station A with uniform acceleration a(1). For some...

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

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

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

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

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

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

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

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

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

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