Forces, Forces Everywhere. An investigation of frictional forces around us. Forces. Newton’s 2 nd law: F=m*a Weight is an example of Force Gravity is an example of Acceleration Forces can be described by the direction in which the acceleration acts Forces acting on surfaces Normal Force.
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An investigation of frictional forces around us
**Think about these questions**
Will the roughness of the wheels and sliding surface (floor) have an effect on the force required to move the car?
How are we comparing surface roughness?