Two shafts having an included angle of 150° are connected by a Hooke’s joint. The driving shaft runs at a uniform speed of 1500 r.p.m. The driven shaft carries a flywheel of mass 12 kg and 100 mm radius of gyration. Using the above data, calculate the maximum angular acceleration of the driven shaft in rad/s2.

Friction topics include: Friction and its types, fluid and solid friction laws, limiting angle of friction, self locking screens efficiency, limiting friction, v thread, pivot and collar bearing and friction clutches. Kinetic friction is a mechanical force that resists movement between two surfaces that are in contact and either rolling or sliding. It's also known as dynamic friction.  Kinetic friction affects the performance and efficiency of machines.  The force of kinetic friction is μk times the normal force on a body. The coefficient of kinetic friction is denoted by the Greek letter... Show more

Friction topics include: Friction and its types, fluid and solid friction laws, limiting angle of friction, self locking screens efficiency, limiting friction, v thread, pivot and collar bearing and friction clutches.

Kinetic friction is a mechanical force that resists movement between two surfaces that are in contact and either rolling or sliding. It's also known as dynamic friction. 

Kinetic friction affects the performance and efficiency of machines. 

The force of kinetic friction is μk times the normal force on a body. The coefficient of kinetic friction is denoted by the Greek letter ``mu'' (μ), with a subscript ``k''. 
The formula for kinetic friction is F f = μ k F N. 

There are three types of kinetic friction:
1. Sliding friction: The friction experienced by a body when it slides over another body
2. Rolling friction: The friction experienced between surfaces that have balls or rollers between them 

3. Fluid friction

In practice, all mating surfaces have roughness, which causes friction. If the surfaces are smooth, friction is very less. Lubrication smoothens the mating surface by introducing an oil film between it. 

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