Question

During the collision of a truck and a car, on which body more force works? Explain your answer.

Answer 1

Let M be the mass of truck and m_n be the mass of the car. (M₁ > m₂).During the collision, their velocities are u and u₀ respectively (u₁< u₂). Let after the collision, their velocities are v₁ and v₂ respectively. According to law of conservation of momentum

M₁u₁ + m₂u₂ = M₁v₁ + m₂v₂ 

The momentum of the car after collision = m₂v₂ 

The momentum of the truck after collision = M₁v₁

 ∵ M₁ m₂ and u₁< u₂ 

So, the car will experience a larger force.