Posted by **James** on Tuesday, March 30, 2010 at 12:56am.

if a particle moves along a line so that at time t where t [0,pi] its position is given by s(t)=-4cost-t^2/2+10 what is the velocity of the particle when its acceleration is zero?

so i found

v(t) = 4sint-t

a(t)=4cost-1 = 0 solved for t plugged it into v(t) and i got the wrong answer i got 3.2 something but the choices are

-5.19

.74

1.32

2.55

8.13

please help thank you

## Answer this Question

## Related Questions

- AP CALC. AB - A particle moves along a line so that at time t, where 0<=t<...
- Calculus - a particle starts at time t = 0 and moves along the x axis so that ...
- Physics - A particle is moving along a straight line and its position is given ...
- calculus - 5. A particle moves along the x-axis in such a way that its position ...
- calculus - 5. A particle moves along the y – axis with velocity given by v(t)=...
- math - a particle starts at time t = 0 and moves along the x - axis so that its ...
- calculus - a particle moves along a number line measured in cm so that its ...
- Calc - a partial moves along the x-axis so that its velocity at time t, for 0<...
- Calc - A particle moves along the x-axis in such a way that it's position in ...
- Calc - A particle moves along the x-axis in such a way that it's position in ...

More Related Questions