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Transcript 
Centripetal Force vs. Velocity
4.50
4.00
3.50
Centriptal Force (Nt)
3.00
2.50
2.00
1.50
1.00
0.50
0.00
0.00
2.00
4.00
6.00
Velocity (m/s)
8.00
10.00
12.00

What are the reasons for plotting Fc = v ?
 Is there a mathematical relationship? If so, what is it?

Is there a relation ship between Fc and mass?
 If so, what is it?

Is there a relation ship between Fc and radius?
 If so, what is it?

Fc = (mv2)/r

Displacement is circular so it is the circumference
of the circle

•Velocity is displacement over time

•Acceleration is change in velocity over time

Newton’s 2nd Law?

•A 13 500 N car traveling at 50.0 km/hr rounds a
curve of radius 200 m.
–Determine the centripetal acceleration of the car
–Determine the centripetal force
–

The real answer is…
the centripetal acceleration

What is the minimum coefficient of friction
between the tires and the road so the car can
round the curve safely?
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