Ramon and sally are observing a toy car speed up as it goes around a circular track. ramon says, "the car’s speeding up, so there must be a net force parallel to the track." "i don’t think so," replies sally. "it’s moving in a circle, and that requires centripetal acceleration. the net force has to point to the center of the circle." do you agree with ramon, sally, or neither? explain.

the statements of Sally and Ramón are incomplete for the explanation of the phenomenon needs to unite the two statements.

Explanation:

To know if the affirmation of each one is correct it is best to propose the solution of the exercise.

For a body to have an acceleration of the velocity direction there must be a force in the same velocity direction, so acceleration must be

    v = v₀ + a t

    a = (v - v₀) / t

On the other hand, for a body to be in a circular motion, as velocity is a vector, the change of direction needs a perpendicular acceleration, called a centripetal

    = v² / r

So we see that since the body is accelerating in the curve it must have a tangential acceleration and because it is in the curve it also needs a centripetal acceleration.

Now we can analyze the statements of Sally and Ramón are incomplete for the explanation of the phenomenon needs to unite the two statements.

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