NEET Physics Question - Center of Mass , Momentum and Collision

Rankers Physics

Topic: Center of Mass , Momentum and Collision

Subtopic: Calculation of Center of Mass

Masses 2 kg and 5kg are located at origin and (7,0) respectively. Centre of mass of the arrangement is located at

(0,5)

(5,0)

(0,0)

(7,0)

Centre of mass is the point which divides the line joining the masses in reverse ratio of masses.

Here ratio of mass is 2:5 so distance from 2kg mass located at origin will be 5/7 of 7 cm so

\[ x_{cm}= \frac{2(0)+5(7)}{5+2}= 5 \]