Question

Cart A and cart B are moving toward each other. They collide and come to rest at the point of impact. From this observation, we can conclude that the carts

have equal masses
were moving with equal and opposite momentum
were moving with equal and opposite velocities
were moving with equal kinetic energies

Answer 1

were moving with equal and opposite momentum

Step-by-step explanation:

As we know that in all collision net external force on the system of two masses will be ZERO

so we can use momentum conservation

`F = (\Delta P)/(\Delta t)`

if we have

F = 0

`\Delta P = 0`

`m_1v_1 + m_2v_2 = 0`

so we have

`m_1v_1 = - m_2v_2`

so correct answer will be

were moving with equal and opposite momentum