A toy car can move in either direction along a horizontal line (the + position axis). Assume the...

Question:

A toy car can move in either direction along a horizontal line (the + position axis).

Assume the friction is so small that it can be ignored. A force toward the right of constant magnitude is applied to the car.

Sketch on the axes using a solid line the shape of the acceleration-time graph of the car.

Newton's Second Law

According to Newton's second law of motion, the net force on an object is equal to mass times the acceleration of the object. If the net force on a object is constant, then the acceleration of the object is also constant.

Answer and Explanation:


Let a constant horizontal force F is applied on the car of mass m

The horizontal acceleration of the car will be given by, {eq}a = \dfrac{F}{m} {/eq}

As force is constant, therefore, the acceleration of the car will also be constant.

The acceleration-time graph will be as follows,


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Newton's Second Law: Meaning & Calculations

from Physics 111: Physics I

Chapter 6 / Lesson 7
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