Your friend is standing at the balcony of a building which is H meter high from the ground whileyou are standing at the parking lot situated at the ground level. Now you realize that you got thewrong keys of your car so you decided to throw the wrong keys to your friend and ask her todrop the original keys. She dropped the keys and at the same instant you threw the keysstraight up with a speed of u. Determine the height at which both sets of keys cross each other.Take H=160 m,u=40 m/s and g=10m/s^2

The height at which both sets of keys cross each other can be calculated using the time of flight…

Answered: Your friend is standing at the balcony…

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