Question

The two ends of a rod of length I initially horizontal falls on two metal pads of same height
from a height h. The coefficients of restitution of the metal pads are e, and e, (e1 >e2). The
angular velocity of the rod after it recoils is :
FOR options see image..

Answer

e1-e2/l *root 2gh​

Answer 1

Answer:

Hence,

h_{f} = e^2h

Which is equal to:

h_{f} = \frac{e^2 * 2gh}{2g}

h_{f} = \frac{v_{f}^2}{2g}

Finally, the height it will reach shall be equal to:

v_{f} = ev_{i}

e = \frac{v_{f}}{v_{i}}

Now, according to the coefficient of restitution:

v_{i} = \sqrt{2gh}

If the body falls a height h, the velocity it'll acquire will be:

Answer 2

Explanation:

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व्हॉट वास थे नाव ऑ कल्पना'स फर्स्ट मिशन तो सपाचे

Her first space mission began on November 19, 1997, as part of the six-astronaut crew that flew the Space Shuttle Columbia flight STS-87. Chawla was the first Indian woman to fly in space.