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QJEEM20Ph93a7: JEE Main 2020 Physics - Class 11 JEEM20Ph93a7 Solution: Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are…

Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are placed at three corners of a right angle triangle of sides 4.0 cm, 3.0 cm and 5.0 cm as shown in the figure. The center of mass of the system is at a point: JEE Main 2020 (Online) 7th January Morning Slot Physics - Center of Mass and Collision Question 81 English

Multiple Choice Options

  • A 2.0 cm right and 0.9 cm above 1 kg mass
  • B 0.9 cm right and 2.0 cm above 1 kg mass
  • C 0.6 cm right and 2.0 cm above 1 kg mass
  • D 1.5 cm right and 1.2 cm above 1 kg mass

Step-by-Step Verified Solution

JEE Main 2020 (Online) 7th January Morning Slot Physics - Center of Mass and Collision Question 81 English Explanation
Let 1 kg as origin and x-y axis as shown

xcm = 1(0)+1.5(3)+2.5(0)5 = 0.9 cm

ycm = 1(0)+1.5(0)+2.5(4)5 = 2 cm

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