A particular tumble dryer process operates with a rotating drum on a regular repeating cycle. One cycle of the drum is described as follows: the drum starts from rest and then undergoes one complete revolution, during which the acceleration and retardation are uniform and at the same rate, the drum the pauses for 4.0 seconds to complete one cycle. During a drying program this cycle is repeated many times. If the total time taken for 5 complete cycles is 95.0 seconds, use a angular velocity - time diagram to help you calculate: the angular acceleration of the drum.

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QUESTION 30
Following on from the previous question. The tumble dryer drum gets stuck after 23.2 seconds, how many
radians will the drum have rotated in this time?
(Note: If you think your answer should have units, the units should be entered in a very specific way on the
blackboard site. Enter your number answer immediately followed by the unit leaving no white space. For
velocity e.g. 33 km h* enter 33km/h (for 2 sig.fig.) or 33.00km/h (for 4 sig.fig.); for density 1000 kg m-3 enter
1000kg/(m*m*m}; for work done 3x103 N m enter 3e3Nm; for area 4 m2 enter 4m*m; for mass eg. 3 kg enter 3kg
or 80 tonne enter 80tonne. For radians enter rad, for degrees enter deg, for revolutions enter rev, for revolutions
per minute enter rev/min, for angular acceleration enter rad/(s*s). Any queries about how to enter units then ask
the module staff team. Also make sure to put the right number of significant figures.)
Transcribed Image Text:QUESTION 30 Following on from the previous question. The tumble dryer drum gets stuck after 23.2 seconds, how many radians will the drum have rotated in this time? (Note: If you think your answer should have units, the units should be entered in a very specific way on the blackboard site. Enter your number answer immediately followed by the unit leaving no white space. For velocity e.g. 33 km h* enter 33km/h (for 2 sig.fig.) or 33.00km/h (for 4 sig.fig.); for density 1000 kg m-3 enter 1000kg/(m*m*m}; for work done 3x103 N m enter 3e3Nm; for area 4 m2 enter 4m*m; for mass eg. 3 kg enter 3kg or 80 tonne enter 80tonne. For radians enter rad, for degrees enter deg, for revolutions enter rev, for revolutions per minute enter rev/min, for angular acceleration enter rad/(s*s). Any queries about how to enter units then ask the module staff team. Also make sure to put the right number of significant figures.)
A particular tumble dryer process operates with a rotating drum on a regular repeating cycle. One cycle of the drum
is described as follows: the drum starts from rest and then undergoes one complete revolution, during which the
acceleration and retardation are uniform and at the same rate, the drum the pauses for 4.0 seconds to complete
one cycle. During a drying program this cycle is repeated many times. If the total time taken for 5 complete cycles is
95.0 seconds, use a angular velocity - time diagram to help you calculate:
the angular acceleration of the drum.
Transcribed Image Text:A particular tumble dryer process operates with a rotating drum on a regular repeating cycle. One cycle of the drum is described as follows: the drum starts from rest and then undergoes one complete revolution, during which the acceleration and retardation are uniform and at the same rate, the drum the pauses for 4.0 seconds to complete one cycle. During a drying program this cycle is repeated many times. If the total time taken for 5 complete cycles is 95.0 seconds, use a angular velocity - time diagram to help you calculate: the angular acceleration of the drum.
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