A person who sits on the right-hand seat of the car that is making a left turn slides over to the right. What is the possible re
2 answers:
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Answer:
ωf' =5.16 rad/s
Explanation:
Given that
Initial angular speed ,ωi= 125 rev/min ( 1 rev/min = 0.10472 rad/s)
ωi=13.08 rad/s
The angular speed after 1 min ,ωf= 0.7 x 125 = 87.5 rev/min
ωf=9.1 rad/s
Lets angular acceleration =α
We know that
ωf = ωi + α t
Now by putting the values in the above equation we get
9.1 = 13.08 + α x 60 ( after 1 min ,t= 60 s)
α = -0.066 rad/s²
The angular speed after 2 min
ωf' = ωi + α t
ωf' =13.08 - 0.066 x 2 x 60 rad/s
ωf' =5.16 rad/s
Therefore the angular speed after 2 min will be 5.16 rad/s.