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tion by means COMPREHENSIUIL A block of ...

tion by means COMPREHENSIUIL A block of mass 10 kg is put gently on a belt-conveyor system of infinite length at t = 0 sec moving with constant speed 20 m/sec rightward at all time, irrespectively of any situation by me motor-system as shown in the figure. 15 N -10 kg 20m/s He = 0.4, h = 0.25 A constant force of magnitude 15 N is applied on the block continuously during its motion. 9. Att = 2 force of friction is f, and at t = 10s force of friction is f, then magnitude of f. + f, is (A) 10 N (B) 15 (C) 25 N (D) 40N 10. Work done by the kinetic friction on the block of mass 10 kg is (A) 1250 J (B) 2500 J (C) 2000 (D) 4000

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