Answer:
The time is
Step-by-step explanation:
From the question we are told that
The diameter of the circular saw is

The peripheral speed is

The time taken for the blade to come to rest is t = 17 s
The total acceleration of the tooth considered is
Generally the radius of the blade is mathematically represented as

Generally the tangential acceleration of the blade is mathematically represented as

Here v is the final velocity of the tooth of the blade which is zero since the blade came to rest
so

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Generally the total acceleration of the tooth of the blade is mathematically represented as

Here
is the radial acceleration , now making
the subject of the formula we have that

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Generally radial acceleration is mathematically represented as
Here
is the velocity at which the total acceleration is 130 ft/s2.
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Generally the time at which the total acceleration is 130 ft/s2. is mathematically represented as

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