# Two identical balls, moving in opposite directions along the X-axis in the inertial frame of reference with velocities

August 26, 2020 | Education

| **Two identical balls, moving in opposite directions along the X-axis in the inertial frame of reference with velocities, the modulus of which is equal to 1 m / s. Find the total momentum of the two balls.**

The total momentum of the two balls is zero. P = P1 + P2, P = mv1 – mv2 since the balls are moving b different sides. v1 = v2, P = 0

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