Arigid, uniform bar with mass m and length b rotates about the axis passing through the midpoint of the bar perpendicular to the bar. the linear speed of the end points of the bar is v. what is the magnitude of the angular momentum l of the bar?

42.4

step-by-step explanation:

convert to decimal

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have