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NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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Two objects of mass 100 g and 400 g posses velocity

5\hat i\,m/s

and

3\hat i + 3\hat j\,m/s

respectively. The velocity of their centre of mass in m/s is

View answer and explanation

Correct option: C

\frac{{17\hat i + 12\hat j}}{5}

Option C (

\frac{{17\hat i + 12\hat j}}{5}

) is correct because the velocity of the center of mass is calculated by

v_{cm} = \frac{{m_1v_1 + m_2v_2}}{{m_1 + m_2}}

.

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