Question

fill in the blank 1 point
in a collision, a 15 kg object moving with a velocity of 3 m/s transfers all of its momentum of a 5 kg object. what would be the velocity of the 5 kg object after the collision? (hint: think about the law of conservation of momentum and draw a picture of what is happening to get started)

Explanation:

Step1: Calculate initial momentum

$p_1 = m_1v_1=15\times3 = 45$ kg·m/s

Step2: Apply conservation of momentum

Since all momentum is transferred, $p_1 = p_2$. And $p_2=m_2v_2$. So $v_2=\frac{p_2}{m_2}=\frac{45}{5}=9$ m/s

Answer:

9 m/s