A 125-g coin is placed 8.0 cm from the axis of rotation of a horizontally rotating turntable as shown. The coefficient of static friction between the coin and the turntable is μs . The turntable makes exactly 1.0 revolution per second and the coin remains in place without slipping. [a] (8 pts) Draw a free-body force diagram for the coin. [b] (10pts)What is the frictional force acting on the coin? [c] (12pts)When the rotational speed is increased to 1.2 revolutions per second, the coin starts to slip. Calculate the coefficient of static friction μs between the coin and the turntable?
Answers: 1
Another question on Physics
Physics, 22.06.2019 07:20
Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?
Answers: 2
Physics, 22.06.2019 16:40
The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?
Answers: 1
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Physics, 23.06.2019 01:00
When solid surfaces slide over each other the kind of friction that occurs is called friction
Answers: 2
You know the right answer?
A 125-g coin is placed 8.0 cm from the axis of rotation of a horizontally rotating turntable as show...
Questions
English, 01.06.2021 16:10
World Languages, 01.06.2021 16:10
English, 01.06.2021 16:10
English, 01.06.2021 16:10
Mathematics, 01.06.2021 16:10
Mathematics, 01.06.2021 16:10
Mathematics, 01.06.2021 16:10
