The Position of a Nanoparticle as a Function of Time

question 53

Multiple Choice

The position of a nanoparticle as a function of time is x(t) = t² - t - 6,where x is measured in meters,t is measured in seconds and t > 0.When is the speed of the nanoparticle zero?

• A)when t = 0.5 s
• B)when t = 2 s
• C)when t = 3 s
• D)The speed of the nanoparticle is never zero.

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