Please tell me answers of these questions I will add your answers in brain list
1...Frictional force is useful for us or not? Tell reason.tell five examples of uses of frictional force and deterrence of frictional force.
2..give 5 examples each of vector and scalar quantity
3....
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1.Friction force is very useful for us because if there is no friction force then we will never stable on any earth surface
2.scalar-speed,distance,mass,volume,work,time
Vector-velocity,momentum,displacement,acceleration,force
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