1 / 9

Acceleration, Weight and Mass

Acceleration, Weight and Mass. Weight. Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires constant acceleration equal to “g” The force that accelerates the body downward is equal to its weight “ w ”.

mari
Download Presentation

Acceleration, Weight and Mass

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Acceleration, Weight and Mass

  2. Weight • Near the surface of the Earth, the pull of gravity on a body is practically constant and every falling body acquires constant acceleration equal to “g” • The force that accelerates the body downward is equal to its weight “w”

  3. It follows that if “m” is the mass of the body, then Newton’s 2nd law equation, F = ma can be restated as: • This enables us to compute the weight of a body from its mass, or the mass of the body from its weight.

  4. “g” can also be calculated for another planet by the equation:

  5. Gravitational v. Inertial Mass • Obtaining a mass measurement based on the pull of gravity on a body is known as gravitational mass.

  6. Is gravity needed to measure mass? • If some known force is applied to a body, and its acceleration is measured, we can calculate the mass using Newton’s 2nd law. • Since the amount of mass is related to body’s inertia, an how much it resists a change in motion, it is called the inertial mass.

More Related