Question

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solve these MCQ

Answer 1

#see these attachments


#be brainly

Answer 2

Answer:

1.4 –a body of mass M is revolving in a vertical circle of radius R what is the difference in the kinetic energy at the bottom at the top position of circle. ... Considering no external force other than gravity, the difference in kinetic energies is due to change in potential energy which is mgh.