What is the magnitude of the displacement of a car that travels half a lap along a circle of radius of 150m?

- marihelenh

- Stacey Warren - Expert brainly.com

Hey! We 've verified this expert answer for you, click below to unlock the details :)

- chestercat

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

- marihelenh

@Shalante Can you help me please?

- marihelenh

@triciaal

- triciaal

|dw:1440969538478:dw|

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

- triciaal

displacement is equivalent to distance
one lap is the perimeter of the circle= circumference = 2 * pi* r
1/2 lap = 1/2 * 2 * pi* r and r is the radius 150

- marihelenh

Ok, I see how that is, but that is describing the distance. My book says displacement is the straight-line distance between two points. Would that mean I double the radius because it would be equal to the diameter?

- triciaal

magnitude strength

- marihelenh

What does that mean?

- triciaal

|dw:1440970129330:dw|

- triciaal

no

- triciaal

@zepdrix thanks

- triciaal

@amistre64 @phi

- triciaal

@hero do you mind helping?

- amistre64

displacement is how far you are from the place you started. not how far you have traveled to get there.

- marihelenh

So would I just double the radius because the car went half the circle?

- amistre64

yes

- marihelenh

So, to be clear, the displacement would be 300m?

- amistre64

thats the way it looks to me yes, the car is 2 radiuses from where it started

- marihelenh

Thank you! Do you know what it means by the magnitude of displacement?

- amistre64

magnitude is the measure of the displacement

- amistre64

as opposed to the direction of the displacment

- marihelenh

Oooohhh. That makes a lot more sense now. Thanks!

- amistre64

consider displacement as a vector, it has both length and direction ...

- triciaal

stand corrected
does this mean we are not dealing with vectors?

- amistre64

we are dealing with a vector, but just the magnitude of it

- amistre64

|dw:1440971991073:dw|

- marihelenh

That makes sense to me now. I have some more questions. Could you help me with them? I am taking an advanced physics class and my teacher never explained any of this, she just assigned the homework, so I am not always sure if I am on the right track.

- triciaal

@amistre64 thank you for your support

- amistre64

physics isnt my strong point, i just know some basic stuff. ask and we can see if i can help ... if not there are others

- marihelenh

Ok, great. I will start a new question.

- amistre64

k, and triciaal is a smart cookie ... her insight is good for the most part ;)

- triciaal

did advanced physics, chemistry and math but that was a long, long, long time ago

Looking for something else?

Not the answer you are looking for? Search for more explanations.