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April 18, 2014

April 18, 2014

Posted by **Jessica** on Thursday, January 20, 2011 at 1:41am.

(a) At what time or times is vx = 0 m/s? (Enter NONE for t2 if there is only one time.)

Smaller time, t1 =

Larger time, t2 =

(b) What are the particle's position and its acceleration at this time(s)? position at time t1 =

acceleration at time t1 =

position at time t2 =

acceleration at time t2 =

- Physics -
**Damon**, Thursday, January 20, 2011 at 6:31amvx = dx/dt = 18 t^2 -6 t =6t(3t-1)

that is 0 at

t = 0 and at t = 1/3

calculate x at t = 0 and at t = 1/3

then acceleration = 36 t - 6 = 6(6t-1)

calculate acceleration at whatever time

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