Monday

January 26, 2015

January 26, 2015

Posted by **Sandy** on Thursday, April 16, 2009 at 7:03pm.

How many revolutions does it make during this time?

I got 940 s for the first part, but for the second part Do i use the formula theta=w^2/2(.49/2pi)

I am very lost on the second part.

I am very lost please help. I determined that

- Physcis -
**bobpursley**, Thursday, April 16, 2009 at 7:08pmon the second...

revolutions= wi*t+ 1/2 alpha*t^2

wi is zero

alpha is ang acceleration in rpm

alpha= .49rad/s^2 * 3600sec^2/min^2*1rev/2pi rad

That ought to do it.

**Answer this Question**

**Related Questions**

Physics - A dentist causes the bit of a high-speed drill to accelerate from an ...

physics - A dentist causes the bit of a high-speed drill to accelerate from an ...

Physics - A dentist causes the bit of a high-speed drill to accelerate from an ...

physics - A Ferris wheel rotates at an angular velocity of 0.29 rad/s. Starting ...

physics - A Ferris wheel rotates at an angular velocity of 0.28 rad/s. Starting ...

physics - A Ferris wheel rotates at an angular velocity of 0.20 rad/s. Starting ...

Physics(Please help) - A dentist causes the bit of a high-speed drill to ...

physics - An automatic dryer spins wet clothes at an angular speed of 4.4 rad/s...

Physics - An automatic drier spins wet clothes at an angular speed of 4.8 rad/s...

physics - A disk rotates about its central axis starting from rest and ...