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Rotational Motion
- Center of Mass
- Σmixi/M
- Σmixi/M
- Linear Momentum
- p = mv
- [M1L1T-1]
- kgm/s
- p = mv
- Angular Velocity
- ω = dθ/dt
- the rate of change of angular displacement
- rad/s
- [T-1}
- ω = dθ/dt
- Torque
- a force that tends to cause rotation
- τ = r x F
- Nm
- [ML2T-2]
- a force that tends to cause rotation
- Angular Momentum
- the quantity of rotation of a body, which is the product
of its moment of inertia and its angular velocity
- l = rp
- [ML2T-1]
- kgm2/s
- the quantity of rotation of a body, which is the product
of its moment of inertia and its angular velocity
- Couple
- a pair of equal and opposite forces with different lines of action
- a pair of equal and opposite forces with different lines of action
- Center of Gravity
- the point where the total gravitational torque = 0
- Gravitational Torque
- τ(g) = Στ(i) = Σmiri
- τ(g) = Στ(i) = Σmiri
- the point where the total gravitational torque = 0
- Moment of Inertia
- I = Σrixi^2
- I = Σrixi^2
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