A particle of mass 3.5 kg is dropped from a height of 24 km above the earth surface. Determine the velocity of the particle on contact with the earths surface using the eqns for terrestrial...

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Extracted text: A particle of mass 3.5 kg is dropped from a height of 24 km above the earth surface. Determine the velocity of the particle on contact with the earths surface using the eqns for terrestrial gravitational energy (g-9.81 m.s-2). [m.s-1] If a force of 10.3 N is applied in the direction of motion for the final kilometer of freefall, determine the speed of the particle on contact with the earth. [m.s-1] Determine the absolute (not proportional) magnitude of error by using the simple model in contrast to the very high altitude model (The external force is not applied in this part, GM= 3.99*1014, rĘ=6378km). [m.s-1, +ve]