The momentum of each trolley is given by this equation p=mv . In the first experiment we take a product of mass and displacement as measure of momentum for each trolley after the spring is released ?

In the first experiment, we can calculate the momentum of each trolley by multiplying the mass of the trolley by the displacement it undergoes after the spring is released. This can be represented by the equation:

p = m * d

Where:
p = momentum of the trolley
m = mass of the trolley
d = displacement of the trolley

By using this equation, we can determine the momentum of each trolley after the spring is released in the first experiment.