Aâsleeping policemanâ is a bump placed in the road to restrict the speed of cars. what radius of curvature should the bump have to cause cars traveling faster than 40 km/hr to leave the ground?

To solve this problem, the concepts related to the balance of forces must be applied. In this case the two forces that must be in balance are the Weight and the centripetal force. Both forces are derived from Newton's second law, one of the linear movement and the other of the angular movement. The centripetal force is given by the function

Here,

m = mass

v =Velocity

R = Radius

And the force product of the weight is given under the function

Here,

m = Mass

g = Gravity

As both forces are in balance we will have

Speed would be

Replacing

The radius must be 12.6m

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.