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thanks!Its not for elastic collision. That's for inelastic collision. In case of elastic collision the kinetic energy of the body is conserved so we have to use the another equation that I mentioned earlier. I guess you are clear now.
Thanks mate.
When a ball is dropped and allowed to fall under free gravity it will have three different stages- initially the resistance will greatly oppose the body, so the displacement/time graph would NOT be too steep but would (obviously) have a negative gradient. Then eventually, the ball will reach terminal velocity, where acceleration is 0 and the speed is constant, so you will get a straight line with a negative gradient. Then, finally will come a point where when the downward force will be much greater than the resistance (when it gets closer to the ground), hence the graph will be VERY steep.
From the description you can tell the answer is B.
Anyone???
Link! Link!?
i d0nt hav the ms for p1
did u work out jun 2011? cud u help me out with q2? N i didn't get what is the difference between quantity and unit
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