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A system consisting of two objects has a total momentum of (18 kg m/sec)i and its center of mass has the velocity of (3 m/s)i. One of the object has the mass 4 kg and velocity (1.5 m/s)i. The mass and velocityof the other objects are​

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A Sherpa of mass 80 kg is instructed to carry a packageof mass 20 kg from the BASE camp to the summit of amountain 1200 m high. (i) How much work the Sherpahas to do against gravity? (II) Also, find the change inpotential energy of the package if the POTENTIAL energyat the base of the mountain is taken as zero.(Take g = 10 m s-2) (Ans. 1.2 * 106 J, 2.4 x 1053)EXPLANATION:A Sherpa of mass 80 kg is instructed to carry a packageof mass 20 kg from the base camp to the summit of amountain 1200 m high. (i) How much work the Sherpahas to do against gravity? (ii) Also, find the change inpotential energy of the package if the potential 053)



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