Surfing For Physics Formulas For Motion?

Lisa asks…Why do cars move faster when they are lighter?What is the physics explanation for this phenomenon? Thanks.Nancy answers:The weight force is equal to the mass times the gravitational pull of Earth, which when using a bunch of physics formulas can tell you that. However, if you think of Newton's law of inertia: things at rest stay at rest and things in motion stay in motion unless acted upon by a net external force. Gravitational pull is part of the net external force, which pulls

Read the rest of the story by clicking here now...