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(b) Find the linear momentum and kinetic energy of a football player of mass 109

ID: 1263764 • Letter: #

Question


(b) Find the linear momentum and kinetic energy of a football player of mass 109 kg moving at a speed of 10.0 m/s.

linear momentum = kinetic energy = a) Find the linear momentum and kinetic energy of a bullet of mass 5.90 x104 kg moving at a speed of 21.5 m/s. linear momentum = kinetic energy = x10-2 kg moving at a speed of 300 m/s. linear momentum = kinetic energy = (b) Find the linear momentum and kinetic energy of a football player of mass 109 kg moving at a speed of 10.0 m/s. linear momentum = kinetic energy = (c) Find the linear momentum and kinetic energy of a truck of mass 1.00

Explanation / Answer

PART-A

. linear momentum = mass* velocity

momentum= 5.90e-2* 300 = 17.7 kg m/s

kinetic energy = 1/2mv^2 = 0.5 *5.90e-2* 300*300

K.E=2655J

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PART-B

linear momentum = 109*10 =1090 kgm/s

kinetic energy = 0.5*109*10*10 = 5450 J

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PART-C

linear momentum =1e4*21.5 = 215000 kg m/s

kinetic energy = 0.5*215000*21 = 2311250J

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