13 A point particle of mass m moves along uniformly P the h

Last updated: 6/9/2023

13 A point particle of mass m moves along uniformly P the h 2m rough 30 R track PQR as shown in the Horizontal Q surface figure The coefficient of friction between the particle and the rough track equals u The particle is released from rest from the point P and it comes to rest at a point R The energies lost by the ball over the parts PQ and QR of the track are equal to each other and no energy is lost when particle changes direction from PQ to QR The values of the coefficient of friction and the distance x QR are respectively close to JEE Main 2016 Offline a 0 2 and 6 5 m b 0 2 and 3 5 m