(139) Problem 7: The angular speed of a rotating platform changes from a = Aradsto w = 6.2 rad's at a constant rate as t

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139 Problem 7 The Angular Speed Of A Rotating Platform Changes From A Aradsto W 6 2 Rad S At A Constant Rate As T 1 (33.46 KiB) Viewed 34 times

(139) Problem 7: The angular speed of a rotating platform changes from a = Aradsto w = 6.2 rad's at a constant rate as the platform moves through an angle 10 = 75 radians. The platform has a radius of R38 cm Randomized Variables frads w = 6.2 rad/s 40 7.5 radians R38 cm A 33% Part (a) Calculate the angular acceleration of the platform a in radis? - Grade Summary Deductions Potential 100 7 8 9 E sino COSO tan cotan asino асово atan bootan sinho cosho tinho cotanho Degrees Radians 5 12 0 6 3 Submissions Atempts remaining as pero detailed view + VO Submit Hint I give up! Hinta: 4 deduction per hint, Hints remaining 2 Feedbackt 50 deduction per feedink 4 33% Part (b) Calculate the tangential acceleration a, in m/s? of a point on the surface of the platform at the outer edge A 33 Part (e) Calculate the final centripetal acceleration ac, in m/s,of a point at the outer edge of the platform