ICSE Class 10 Answered
If 'm' is the mass of the body, 'v' its velocity and 'p' the momentum then write a relationship between change in momentum, mass and velocity of the body when:
1) v is almost equal to c, the velocity of light.
2) v is very very less as compared to c, the velocity of light.
Asked by kadtej83 | 26 Jun, 2019, 07:18: PM
Expert Answer
Relativistic momentum p of a mass m moving with speed u is given by, p = ....................(1)
It is assumed, the speed u is very near to speed of light c, otherwise we get p = m×u ...............................(2)
When a mass of m changing its speed u1 to u2 , if speeds are very near to speed of light,
then change in momentum ( p2 - p1 ) = ................(3)
if speeds are very much less than speed of light, then ( p2 - p1 ) = m( u2 - u1 ) ......................(4)
Answered by Thiyagarajan K | 26 Jun, 2019, 10:58: PM
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