A suitcase slides forward along the aisle of a train at relative to the train

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A 2.0 kg2.0\,\text{kg} suitcase slides forward along the aisle of a train at 3.0 m/s3.0\,\text{m/s} relative to the train. The train travels east at 10.0 m/s10.0\,\text{m/s} relative to the ground. Determine the suitcase’s translational kinetic energy as measured by an observer standing on the ground. (a) 1.1×102 J1.1\times10^{2}\,\text{J} (b) 4.9×101 J4.9\times10^{1}\,\text{J} (c) 1.7×102 J1.7\times10^{2}\,\text{J} (d) 1.0×102 J1.0\times10^{2}\,\text{J}

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