Re-AIPMT-2015|A ball is thrown vertically downwards from a height of 20 m with an initial velocity V

A ball is thrown vertically downwards from a height of 20 m with an initial velocity V.,It collides with the ground, loses 50 percent of its energy in collision and ,rebounds to the same height. ,The initial velocity vo is ,(Take g = 10 ms-2) ,[Re-AIPMT-2015],

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[sajjadalam]

Sir aap bahut acha samjhate hain ache se samjh me aa jaata hai Thankyou so much sir🥰

[sumanagrawal]

One of the best solutions of this question.. 😊

[neetsk]

Me unacdemy par apki live class dekhta tha sir mere is year 637 marks aye h physics me 161 .aap mast pdete ho sir.🙏🙏

[imraniqbal]

Sir please make a solution video upon these two question :-

1)Two persons A and B are moving in opposite directions with same speed V on a horizontal road. An aeroplane is flying horizontally in the sky at constant velocity of magnitude V to A. the plane appears to move perpendicular to the road and to B the plane appears to move at 45° to the road. Find V in terms of V.

2)Two persons A and B running on a track in the same direction observe a car. A says that the car is moving in cast direction and B says the car is moving in north direction. They contradict the direction but say that magnitude is same. If the speed of B is double that of the speed of A. then the true direction of the car will be:

[deshpremsahu]

I did this question by the Help of WET, but there is, a negative term, coming. Please help

[letmeshare]

Sir please provide solution of all pyqs like this

[suhailmanzoor]

fantastic explntion sir..thnku soo much

[silencemoodmeditation]

Sir final velocity to zero to mai direct equation (V2=U2-2gh) nahi laga sakta hoon sir??
To U2=2gh ho jayega 😮😮😮

[goal]

Sir finally height to initail se 2h lege na

[aditisaroya]

Sir plz plz explain me how to know that it has initially both kinetic and potential energy 1:20

[ritikanagar]

Sir jse projectile ki video h ese please circular motion ki bhi dal dijye

[icreal]

sir dono m ko kaise kat diya sirf ek m se>??

[razinshaikh]

laws of motion karado sir plz 1-d and 2-d jaisa formula map