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A solid, uniform disk of radius 0.250 m and mass 48.2 kg rolls downa ramp of length 3.90 m that makes an angle of 14.7° with thehorizontal. The disk starts from rest from the top of theramp.(a) Find the speed of the disk's center of mass when it reaches thebottom of the ramp.1Your response differs from the correct answer by more than 100%.m/s(b) Find the angular speed of the disk at the bottom of theramp.2Your response differs from the correct answer by more than 100%.rad/s
A good rule of thumb is to use relativistic equations whenverthe kinetic energies determined classically and relativisticallydiffer by more than 1%. find the speeds when this occurs for (a)electrons, and (b) protons.
A good rule of thumb is to use relativistic equations whenever the kinetic energies determined classically and relativistically differ by more then 1%. Find the speeds when this occurs for (a) electrons and (b) protons.