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I am trying to calculate the average speed of a car while travelling around a loop de loop in m/s and km/h can any body help? Thanks

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- Thread starter Jaja
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There will be several willing to help ... only if they see some initial attempt

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I have been watching loop de loops on youtube and was wanting to see if I could calculate it on the hotwheels track. I worked out the minimum speed the car has to be at the top of the track to be 0.431m/s or 1.55 km/hr but calculating the average speed below , it seems too fast. Wondering if I have the formula right.I am trying to calculate the average speed of a hotwheels car while travelling around a loop de loop in m/s and km/h can any body help? Thanks

Loop radius: 19cm. Loop Time= 0.041 secs

Circumference = 2pi * 19cm radius = 0.038pi (meters)

0.038pi / 0.041 secs = avg speed in m/s

0.038pi / 0.041 = 2.91 m/s

To convert to km/h

2.91m/s * 3600 (seconds in hours) / 1000 (1000meters = km)

2.91 * 3.6 = 10.5 km/h

So the hotwheels car was traveling 2.91m/s or 10.5km/h

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One can use the principle of the conservation of energy to derive the required formula.Wondering if I have the formula right.

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sophiecentaur

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nasu

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How do you know the time to go around the loop?

And your minimum speed at the top sem to be off. For a radius of 19 cm should be around 1.4 m/s I believe.

And your minimum speed at the top sem to be off. For a radius of 19 cm should be around 1.4 m/s I believe.

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Ok thank you very much

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If it was, can you show me how you did the formulaHow do you know the time to go around the loop?

And your minimum speed at the top sem to be off. For a radius of 19 cm should be around 1.4 m/s I believe.

Thanks

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So can you show me how to do the formula as I looked on the Internet of conservation of energy I didn't understand how to use it in my question

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thank you, yes I made an error now this is starting to make sense

And your minimum speed at the top sem to be off. For a radius of 19 cm should be around 1.4 m/s I believe.

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