If a car moves with a constant speed, can you say that
it also moves with a constant velocity? Give an example
to support your answer.
2007-02-05 05:50:35 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Speed is a scalar quantity, meaning direction is insignificant. Velocity is a vector quantity, meaning it has a magnitude and a direction. So a car moving 65 MPH, but turning while doing so, has a constant speed but not a constant velocity.
2007-02-05 06:13:56 · answer #1 · answered by dentroll 3 · 0⤊ 0⤋
NO!
A common misconception. A car moving around a circle at constant speed has a continuously changing velocity vector.
Same for a planet. Speed is constant, for circular orbit, but velocity is constantly changing.
Related to inertial reference frames.
2007-02-05 13:56:19 · answer #2 · answered by modulo_function 7 · 0⤊ 0⤋
NO,
a car moving with in a circle has constant speed but varying velocity.
2007-02-05 13:58:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋