Physics (Torque)

Question 1

Center of Mass

Answer 1

Mass of any object concentrated at a single point.

Formula: xcm= m1x1 + m2x2 / m1+m2
ycm = m1y1 + m2y2 / m1 + m2

Question 2

Torque

Answer 2

Apply force to center of mass of object will accelerate it.

Formula: Torque= F•r•sin θ
F= force
r= moment/lever arm

θ= 90 ° : F and r produce max possible torque.

θ= 0 ° or 180 °: no torque.

• Used in problems involving levers or balancing.
  a. Tccw=Tcw

Question 3

Statics

Answer 3

• Study forces in play where things are still.

- for any force that is still: all of forces and torques must be balanced.