(3%) Problem 21: Commercial airplanes are sometimes pulled out of the passenger loading area by a tractor. 50% Part (a) An 1800 kg tractor exerts a force of 1.75 x 104 N backward on the pavement, and the system experiences forces resisting motion that totals 2400 N. If the acceleration is 0.16 m/s², what is the mass of the airplane in kilograms? ma-92.575 M-92.58 * Attempts Remain Feedback: is available. 50% Part (b) Calculate the force, in newtons, exerted by the tractor on the airplane, assuming 2200 N of the friction is experienced by the airplane. F 17.012 Grade Summary Deductions Potential 416 96%

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: