An object attached to a spring is pulled across a frictionless surface.If the spring constant is 45 N/m and the spring is stretched by 0.88 m when the object is accelerating at 1.4 m/s2,what is the mass of the object?
A)28 kg
B)24 kg
C)31 kg
D)36 kg

Question

Quizplus · Accepted Answer

Explanation:The force exerted by the spring is given by F = -kx, where k is the spring constant and x is the displacement from the equilibrium position. The acceleration of the object is given by a = F/m, where m is the mass of the object. Substituting the given values, we get:1.4 m/s^2 = (-45 N/m)(0.88 m)/mSolving for m, we get:m = 28 kg

An Object Attached to a Spring Is Pulled Across a Frictionless