what's the definition and equation for relative speed? could you also give an example? thanx :D
2007-04-11 07:45:59 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Physics
It's the speed between two objects in motion without regards to any fixed reference. If you are going 20 mph and I'm doing 10 mph and were headed directly toward each other, our relative speed is the sum of the two because we're coming at each other at 30 mph.
2007-04-11 07:51:34 · answer #1 · answered by Gene 7 · 8⤊ 0⤋
Relative Speed
2016-10-06 07:45:55 · answer #2 · answered by lathem 4 · 0⤊ 1⤋
Measurement of Speed is Relative. Meaning in relationship to another object. A car traveling down the road is going 100 MPH relative to an object on the side of the road not moving. Two Cars traveling down the road side by side both going in the same direction with a speed of 100 MPH BUT the Relative Speed between them is ZERO.
2016-03-16 22:39:46 · answer #3 · answered by Anonymous · 1⤊ 0⤋
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Speed is always positive, but what you are talking about is the vector Velocity. A and B have a relative speed of 100 ft/sec, then we don't know of if they are getting closer or separating. But a negative velocity (distance getting smaller) means they are approaching, while positive = greater distance. Normally, in class problems, the velocities are given from an outside point of view - "A is moving East at 50 fps and B is moving east at 90 fps and is further east, is their relative velocity positive or negative and what is it?" Well, B is further east and moving east, so it is "in front" so the relative speed is 40 fps and the relative velocity is +40 because B is moving out.
2016-04-10 04:10:03 · answer #4 · answered by Maribeth 4 · 0⤊ 0⤋
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RE:
what is relative speed?
what's the definition and equation for relative speed? could you also give an example? thanx :D
2015-08-10 12:58:51 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Example:
You are traveling in your car at a speed of 40 mph. A blue car next you is traveling at 50 mph. Relative to you, the blue car has a speed of +10 mph. However, relative to a stationary spectator on the side of the road you are going 40 mph and the blue car is going 50 mph.
2007-04-11 07:52:53 · answer #6 · answered by Anonymous · 4⤊ 0⤋
how to calculate relative speed of an observer in car moves with speed100km/hr relative to car moves with speed 50km/hr
2014-09-17 23:10:09 · answer #7 · answered by DALIA G 1 · 0⤊ 0⤋
It's your speed in relation to another point in space. This point can be moving or still.
2007-04-11 08:07:47 · answer #8 · answered by Anonymous · 0⤊ 0⤋
with reference to a point the relative speed is the speed of the object plus/minus the speed of the reference frame in which the object is moving>>>> with reference to a person on railway plateform, the relative speed of another person moving in the train will be (if he is moving in the direction of the train) the speed of that person plus speed of the train
2007-04-11 09:20:36 · answer #9 · answered by Its my Duty 3 · 0⤊ 0⤋
when you go to the amuse ment park for two days it seems like you were only there a few hours. When the relatives come to visit it seems as if time stands still. So relative speed is slower.
2007-04-11 07:56:58 · answer #10 · answered by oldsoftee2001 6 · 1⤊ 4⤋