Question

A green cart is less massive than a red cart. Both carts are on a frictionless horizontal track where they can only travel along the same straight line. The green cart bumps into the stationary red cart.
As a result of the collision, the red cart moves forward in the direction of the green cart's original velocity. The green cart bounces off the red cart and moves backward.
How does the magnitude of the red cart's momentum after the collision compare with the magnitude of the green cart s momentum before the collision?

Answer 1

REF.Image.

Let the situation be life

So by momentum conservation, we get

$m_1\left(v\right)+m_2\left(0\right)=m_2\left(v_2\right)=-m_1\left(v_1\right)$

$\Rightarrow m_1\left(v\right)+m_1\left(v_1\right)=m_2{v}_2$

$\Rightarrow m_{1}v<m_2{v}_2$

Thus, the momentum of red cart

after collision is grater that

of green cart before collision