Explanations & Calculations
- The maximum friction force that acts on the wheels of the car during the skid does work against the motion thereby draining the car's kinetic energy making it stop.
- Work done by the force is W=fs .
- Since the tire & road conditions do not change, the maximum friction force remains constant.
- Then, the calculation should look like this,
W121mv2W221m(2v)2(2)÷(1)14s2=fs1=f(d)⋯(1)=fs2=fs2⋯(2)=ds2=4d
- The car would skid 4times the previous distance.
Comments
Leave a comment