speed and acceleration
2006-10-08 21:39:54 · 4 answers · asked by lgenes_esc5161 1 in Science & Mathematics ➔ Physics
EDIT: Give the credit to the third response for the correct answer; my answer was incorrect. Acceleration is change in velocity, not change in speed. "velocity" is a vector with a certain speed and direction. "speed" is just the magnitude of the velocity vector, with no direction specified.
It's possible to have acceleration with constant speed, if the car is going in a circular path. The acceleration will be towards the center of the circle. The magnitude of the velocity vector doesn't change, but it's direction does!
2006-10-08 21:43:01 · answer #1 · answered by Bramblyspam 7 · 0⤊ 0⤋
No.
Definately not.
If the car is moving in a circular path maintaining a constant speed, the Speedometer will show constant value as it shows the instantaneous speed.
But, the car will be continuously accelerating to maintain the speed.
Just as our Earth is an accelerating body although it revolves with constant speed.
2006-10-09 04:45:37 · answer #2 · answered by Anurag 2 · 1⤊ 0⤋
Acceleration is the arte of change of speed, if there is no increase in speed, acceleration is zero.
2006-10-09 04:45:33 · answer #3 · answered by kenyanmartin2000 2 · 0⤊ 0⤋
yes the car is travelling in a constant velocity and is not accelerating at all.
2006-10-09 05:30:32 · answer #4 · answered by tonima 4 · 0⤊ 0⤋