February 25, 2017

Homework Help: Physics-calc

Posted by Hannah on Saturday, September 12, 2009 at 1:31pm.

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds.

Determine its velocity ->v as a function of time t.

Determine its acceleration ->a as a function of time t.

Determine ->r at time t = 2.5 s.

Determine ->v at time t = 2.5s.

Express your answer using two significant figures. Express your answer in terms of the unit vectors ihat and jhat.

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