Problem: A force is applied to a 3.5-kg radio-controlled model car parallel to the x-axis as it moves along a straight track. The x-component of the force varies with the x-coordinate of the car as shown in figure .Suppose the model car is initially at rest at x=0 and F is the net force acting on it.Use the work-energy theorem to find the speed of the car at x=3.0 m.Use the work-energy theorem to find the speed of the car at x=4.0 m.Use the work-energy theorem to find the speed of the car at x=7.0 m.

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A force is applied to a 3.5-kg radio-controlled model car parallel to the x-axis as it moves along a straight track. The x-component of the force varies with the x-coordinate of the car as shown in figure .Suppose the model car is initially at rest at x=0 and F is the net force acting on it.

Use the work-energy theorem to find the speed of the car at x=3.0 m.

Use the work-energy theorem to find the speed of the car at x=4.0 m.

Use the work-energy theorem to find the speed of the car at x=7.0 m.

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Our tutors have indicated that to solve this problem you will need to apply the Work By Variable Forces (Springs) concept. You can view video lessons to learn Work By Variable Forces (Springs). Or if you need more Work By Variable Forces (Springs) practice, you can also practice Work By Variable Forces (Springs) practice problems.