The maximum speed around a level curve is 30.0 km/h. what is the maximum speed around a curve with twice the radius?

When the radius is doubled, its speed will be 42.42 km/h.

Explanation:

Given that,

The maximum speed around a level curve is 30 km/h = 8.34 m/s

We need to find the maximum speed around a curve with twice the radius. The maximum speed of the object is given by :

............(1)

If radius is doubled, r' = 2r

The maximum speed is given by :

..........(2)

Dividing equation (1) and (2) we get :

v' = 42.42 km/h

So, when the radius is doubled, its speed will be 42.42 km/h. Hence, this is the required solution.

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