In: Physics
An object has a relativistic momentum that is 7.3 times greater than its classical momentum.
What is its speed?
Express your answer using two significant figures.
v=__________c
Relativistic momentum P = 7.3 ( classical momentum)
(m o v) / [1 -(v 2 / c 2 ) ] 1/2 = 7.3 m o v
(m o ) / [1 -(v 2 / c 2 ) ] 1/2 = 7.3 m o
1 / [1 -(v 2 / c 2 ) ] 1/2 = 7.3
[1 -(v 2 / c 2 ) ] 1/2 = 1 / 7.3
= 0.1369
[1 -(v 2 / c 2 ) ] = 0.0187
(v 2 / c 2 ) = 0.9812
v / c = 0.9905
v = 0.9905 c
v = 0.99 c