Arod of length 30.0 cm has linear density (mass per length) given by l 5 50.0 1 20.0x where x is the distance from one end, measured in meters, and l is in grams/meter. (a) what is the mass of the rod? (b) how far from the x 5 0 end is its center of mass?

(a). The mass of the rod is 15.9 g.

(b). The center of mass is 0.153 m.

Explanation:

Given that,

Length = 30.0 cm

Linear density

We need to calculate the mass of rod

Using formula of mass

Put the value of x

We need to calculate center of mass

The center of mass has an x coordinate is given by

We need to calculate the value of  

Put the value into the formula

Put the value into the formula of center of mass

Hence, (a). The mass of the rod is 15.9 g.

(b). The center of mass is 0.153 m.

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

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explanation: