Question

a coin placed 31.0 cm from the center of a rotating, horizontal turntable slips when its speed is 48.2 cm/s.(a) what force causes the centripetal acceleration when the coin is stationary relative to the turntable?static frictioninertia kinetic frictioncentrifugal forcecorrect: your answer is correct.(b) what is the coefficient of static friction between coin and turntable?0.076 correct: your answer is correct.

Answer 1

The force that causes the centripetal acceleration when the coin is stationary relative to the turntable is static friction. The coefficient of static friction between the coin and the turntable is 0.076.

a.) The force that causes the centripetal acceleration when the coin is stationary relative to the turntable is static friction. Static friction is the force that acts between two surfaces in contact, preventing them from sliding past each other.

b.) To calculate the coefficient of static friction between the coin and the turntable, we can use the formula:

We know the force of static friction is equal to the centripetal force, which can be calculated using the equation:

By substituting the given values into the equations, we can find the coefficient of static friction.