A circular saw spins at 6000 rpm , and its electronic brake is supposed to stop it in less than 2 s. As a quality-control specialist, you're testing saws with a device that counts the number of blade revolutions. A particular saw turns 75 revolutions while stopping. Does it meet its specs?

a. yes

b. no

a. yes

Explanation:

The initial speed of the circular saw is:

Deceleration rate needed to stop the circular saw is:

The number of turns associated with such deceleration rate is:

Since the measured number of revolutions is lesser than calculated number of revolution, the circular saw meets specifications.

more than, less

less than, more

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank