Question

A ball of clay is moving at a speed of 12 m/s collides and sticks to a stationary ball of clay. If each ball has a mass of 13 kg, what's the combined velocity of the two balls of clay after the collision

Answer 1

p_{f} = 6 m / s

Step-by-step explanation:

We can solve this exercise using conservation of momentum. For this we define a system formed by the two balls, so that the forces during the collision have been intense and the moment is preserved

Initial instant. Before the crash

p₀ = m v +0

Final moment. Right after the crash

`p_(f)` = (m + m) v_{f}

how the moment is preserved

p₀ = p_{f}

m v = 2 m v_{f}

v_{f} = v / 2

we calculate

v_{f} = 12/2

p_{f} = 6 m / s