Thursday

April 17, 2014

April 17, 2014

Posted by **Katie** on Sunday, January 31, 2010 at 2:11pm.

For the position vector I got:

-7.16sin(omega*t)i+4.00-7.16cos(omega*t)j

For the velocity vector I got:

-7.16*omega*cos(omega*t)i+7.16*omega*sin(omega*t)j

For the acceleration vecotr I got:

7.16*omega^2*sin(omega*ti)+7.16*omega^2*sin(omega*t)j

I this correct or not? My homework is computer based and when I type this in, it marks it wrong. Please help.

- college Physics -
**bobpursley**, Sunday, January 31, 2010 at 2:19pmThe only two things I see wrong is you have on acceleration the unit vector i inside the argument of the sin function, and on the lst part of the acceleration vector, you should have COSINE, not sine

- college Physics -
**Damon**, Sunday, January 31, 2010 at 2:24pmOne error

For the acceleration vector I got:

7.16*omega^2*sin(omega*ti)+7.16*omega^2*__________sin(omega*t)______j

should be

For the acceleration vector I got:

7.16*omega^2*sin(omega*ti)+7.16*omega^2*cos(omega*t)j

Note that

acceleration = - omega^2 *( sin and cos components of displacement)

**Related Questions**

physics - The coordinates of an object moving in the xy plane vary with time ...

Physics Quick!! - At t = 0, a particle moving in the xy plane with constant ...

Physics - The vector position of a 3.45 g particle moving in the xy plane ...

Physics - The vector position of a 3.45 g particle moving in the xy plane ...

Physics - The vector position of a 3.45 g particle moving in the xy plane ...

Physics - The vector position of a 3.45 g particle moving in the xy plane ...

biology - Given the part of the molecule shown below, can the underlined atom ...

mathematics - x,y and z are complex numbers that satisfy the equations x+y+z=2, ...

Physics - Four particles in the xy plane have the following masses and ...

Algebra - Which of the following equations containing grouping symbols is ...