Question

Two objects of masses 200 gm and 500 gm posses velocities $10\hat{i}m/sand3\hat{i}+5\hat{j}m/s$ respectively. the velocity og their centre of mass in m/s is

• A. $5\hat{i}-25\hat{j}$
• B. $\frac{5}{7}\hat{i}-25\hat{j}$
• C. $5\hat{i}+\frac{25}{7}\hat{j}$
• D. $25\hat{i}-\frac{5}{7}\hat{j}$

Answer 1

The correct option is C $5\hat{i}+\frac{25}{7}\hat{j}$