Factors deciding force to pull block are: 1) mass of block which would be the am

Question

Factors deciding force to pull block are: 1) mass of block which would be the amount of matter the block is made up of 2) coefficient of friction which would be the friction between the block and the inclined plane 3) Angle of incline plane which would be the degree the of ramp 4) Angle with incline at which force is applied which would be the component of the weight vector that causes acceleration To reduce required force we can decrease the inclination of the angle. It will reduce the normal force on the block which will lead to reduced force of friction.

Question:How much do you feel we would have to alter the angle before we feel a difference?

Explanation / Answer

Friction force = mu X Normal

Normal = mgcos(theta)

dN = -mgsin(theta)x d(theta)

So for small change in theta you will see large change in normal at bigger angles close to 45 ° while a larger change in theta is required for small angles

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