ROTATIONAL MOTION Quiz

• L = Σ (r_i · p_i)
• L = Σ (p_i × r_i)
• L = Σ (r_i + p_i)
• L = Σ (r_i × p_i)

• It increases continuously
• It decreases to zero
• It changes direction randomly
• It remains constant

• V = P × M
• V = M/P
• V = P²/M
• V = P/M

• The geometric center of the system
• The point where all mass is physically located
• The point with zero velocity
• As the point whose position vector is the mass-weighted average of the position vectors of all particles

• |a||b|cosθ
• |a| + |b|
• |a||b|tanθ
• |a||b|sinθ