A child rides a bicycle in a circular path withí a radius of 3.0 m. The tangential speed of the bicycle is 2.0 m/s. The combined mass of the bicycle and the child is 43 kg.

57.3N

Explanation:

Given parameters:

radius of the path = 3m

tangential speed  = 2m/s

mass of the bicycle and child  = 43kg

Unknown:

centripetal force  = ?

Solution:

The centripetal force is the inward force on a body round a circular path.

It is expressed as;

    F  =  

F is the centripetal force

m is the mass

v is the tangential speed

r is the radius

        F  =   = 57.3N

your answer is, orbit around the nucleus

the answer is 12 as i may remember

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