Question

selasie2. Calculate the speed of an object of mass 0.2 kgmoving with a momentum of 3.6 kg m/s. (1 point)A. O22.839 m/sB. 18 m/sC. O4.956 m/sD. 03.135 m/sE. O 33.098 m/s

Answer 1

Given,

The mass is

$m=0.2\text{ kg}$

The momentum of an object is

$p=3.6\text{ kg.m/s}$

To find: Calculate the speed of an object.

Solution:

The momentum of an object is calculated by the formula.

$\begin{gathered} p=mv \\ 3.6=0.2\times v \\ v=\frac{3.6}{0.2} \\ v=18\text{ m/s} \end{gathered}$

Hence, the given option (b) is correct.