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Topic: Smooth movement along the row line. Rotation.

Task 1: The radius of the puck is 0.4 m and it makes 80 revolutions in 40 seconds.

a) Calculate the rotation period and frequency of the puck!

b) Calculate the linear distance of the outer points of the puck and the centripetal acceleration!

c) Calculate the speed of the puck!

Show the solution!

Task 2: A horizontally placed round platform rotates smoothly around its axis, making 90 rotations in 3 minutes. The radius of the platform is 0.6 m. Answer the questions and show the solution!

a) How big is the platform's calculation period?

b) How big is the frequency of the platform?

c) How big is the linear distance between the points of the platform?

d) What is the centripetal acceleration of the points of the platform?

e) What is the angular velocity of the platform?

Picture provided below:

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