Is the force of friction the sum of all the microscopic contact forces between the bottom of the block and the surface?

1 answer:

6 0

The force of friction is that force that tends to oppose the motion of the body with the surface in contact... are you clear with it?

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3 years ago

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3 years ago

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3 years ago

When a net force of 17.0 newtons is applied to a dictionary placed on a frictionless table, it accelerates by 3.75 meters/second

4vir4ik [10]

Force = (mass) x (acceleration) (Newton's second law of motion)

Divide both sides of the equation by 'acceleration', and you have

Mass = (force) / (acceleration)

Mass = 17 newtons / 3.75 meters per second-sqrd = 4.533 kilograms (rounded)

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3 years ago