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A block is moving along the x -axis and its position varies in time according to the expression x = (3.00 m/s 2 ) t 2 , where x is in meters and t is...
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# A block is moving along the xx2t2 where xt (a)Determine its position (in m) at t m (b)

-axis and its position varies in time according to the expression = (3.00 m/s),

is in meters and is in seconds.

= 2.80 s.

Determine its position (in m) at t = (2.80 s) + Δt.

(Use the following as necessary: Δt. Do not include units in your answer.)

xf = \$\$

23.68

An expression for the position as a function of time has been given. To obtain the position at the time specified, enter the given time into the expression and perform any needed mathematical operations. m

(c)

Evaluate the limit of Δx

Δt as Δt approaches zero to find the velocity (in m/s) at t = 2.80 s.

Note that three operations are required. First determine Δx, second divide by Δt, and third in the resulting expression let Δt → 0. Your answer should be a constant independent of time. m/s

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Subject: Physics, Science

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