Question

the earth moves at a speed of 2.95*10^4m/s and has a mass of 6.0*10^24. calculate the momentum of the earth

Answer 1

Given:

the speed of the earth is

$v=2.95\times10^4\text{ m/s}$

mass of the earth is

$m=6.0\times10^{24}\text{ kg}$

Required:

momentum of the earth needs to be calculated.

Explanation:

To calculate the momentum of the earth we will use momentum formula that is given as

$P=mv$

here P is momentum, m is the mass of the earth and v is the velocity of the earth.

plugging all the values in the above relation. we get,

$\begin{gathered} P=6.0\times10^{24}\text{ kg }\times2.95\times10^4\text{ m/s} \\ P=\text{ 17.7 }\times10^{28}\text{ kg m/s} \end{gathered}$

Thus, the momentum of the earth is

$P=\text{17.7}\times10^{28}\text{kg\frac{m}{s}}$