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23 Nov 2019
A 15 kg object is acted on by a conservative force given by F =-1.7x - 4.7x2, with F in newtons and x in meters. Take thepotential energy associated with the force to be zero when theobject is at x = 0. (a) What is the potential energy of the systemassociated with the force when the object is at x = 2.3 m? (b) Ifthe object has a velocity of 2.9 m/s in the negative direction ofthe x axis when it is at x = 6.3 m, what is its speed when itpasses through the origin? What are the answers to (c) (a) and (d)(b) if the potential energy of the system is taken to be -12 J whenthe object is at x = 0?
A 15 kg object is acted on by a conservative force given by F =-1.7x - 4.7x2, with F in newtons and x in meters. Take thepotential energy associated with the force to be zero when theobject is at x = 0. (a) What is the potential energy of the systemassociated with the force when the object is at x = 2.3 m? (b) Ifthe object has a velocity of 2.9 m/s in the negative direction ofthe x axis when it is at x = 6.3 m, what is its speed when itpasses through the origin? What are the answers to (c) (a) and (d)(b) if the potential energy of the system is taken to be -12 J whenthe object is at x = 0?
Irving HeathcoteLv2
15 Feb 2019
