Ch. 10 Physics Quiz extraveganza

What is x hat cross y hat?

I'm sorry...

• • - z hat

• x hat + y hat

• z hat

• z hat - y hat

If there are no external torques acting on a system than angular momentum is conserved.

• True

• False

Newton's Second Law equivalent for rotations is?

What is the angular momentum for a object (2kg) moving tangent to a circle with radius 3m at a speed of 9 m/s

• 54 kg/s

• 27 kg m^2/s

• 54 kg m^2/s

• 18 kg m^2/s