Using the equation for elastic collisions: v'₁ = (m₁ - m₂)v₁ / (m₁ + m₂) v'₁ = (2 - 3)(5) / (2 + 3) = -1 m/s
Using the kinematic equation: v = u + at v = 10 + 2(5) = 20 m/s Using the equation for elastic collisions: v'₁ =
:
Using the equation: f = μN 4 = μ(2)(10) μ = 0.2 Using the equation: ΔU = mgh ΔU =
Mechanics is a fundamental branch of physics that requires a deep understanding of concepts, formulas, and problem-solving strategies. By practicing problems and reviewing key concepts, you'll be well-prepared for Physics Olympiads and contests. Remember to stay focused, persistent, and patient, and you'll excel in this fascinating field. Using the equation for elastic collisions: v'₁ =
Using the equation: ΔU = mgh ΔU = 5(10)(10) = 500 J
Using the conservation of momentum: m₁v₁ + m₂v₂ = m₁v'₁ + m₂v'₂ 2(5) + 0 = 2v'₁ + 3v'₂