InterviewSolution
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InterviewSolution
| 1. |
Three particles of masses 1 kg, 2 kg and 3 kg are subjected to forces (3i-2j+2k) N,(-i+2j-k Ni+ j+KN respectively. Find the magnitude of the acceleration of the CM of the systemее |
| Answer» <p>a(cm) = ( m1a1 + m2a2 + m3a3)/(m1 + m2 + m3)= {(3i-2j+2k)+(-2i+4j-2k)+(3i+3j+3k)}/6</p><p>a(cm) = 2/3 i + 5/6 j + 1/2 k</p><p>|a(cm)| = ((16+25+9)/36)^1/2</p><p>= 1.178 m/s2</p> | |