A 4.00-kg block is attached to a vertical rod by means of two strings. when the system rotates about the axis of the rod, the st
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Answer:
(A). the angular velocity of fan is 0.380 rev/s.
(B). The number of revolution is 0.059 rad.
(C). The tangential speed of the blade is 0.907 m/s.
(D). The tangential acceleration of the blade is 2.10 m/s²
Explanation:
Given that,
Initial angular velocity = 0.200 rev/s
Angular acceleration = 0.883 rev/s²
Diameter = 0.760 m
Time = 0.204 s
(A). We need to calculate the angular velocity of fan
Using equation of angular motion
Put the value into the formula
(B). We need to calculate the number of revolution
Using formula of angular displacement
Put the value into the formula
(C). We need to calculate the tangential speed of the blade
Using formula of speed
Put the value into the formula
(D). We need to calculate the tangential acceleration of the blade
Using formula of tangential acceleration
Put the value into the formula
Hence, (A). the angular velocity of fan is 0.380 rev/s.
(B). The number of revolution is 0.059 rad.
(C). The tangential speed of the blade is 0.907 m/s.
(D). The tangential acceleration of the blade is 2.10 m/s²