Question

The length of measuring rod is 2m when it is at rest. What sill its length b
a velocity one third of the speed of light?
(a) 5.886 m
(b) 4.886 m
(c) 3.886 m
(d) 2.886 m
(e) 1.886 m​

Answer 1

Answer:

1.886m

Explanation:

formula L=l°√1-V^²/C^²

L=2√1-(0^²)/(1/3)^²

L=2√1-0

L=2√1

L=2meter.

so 1.886 after round will be 2 meter