Ball A, with a mass of 10kg, is moving to the right at 20 m/s. Ball B is moving to the left at 20 m/s. Upon collision, Ball B comes to a standstill, and Ball A moves to the left at twice its original speed. What is the mass of Ball B? Show your work
p total after can be found using p = mv (since only one ball is in motion we can ignore the second ball) p= 10 * 40 =400 kg* m/s
p total after must also be 400
p total before = p ball1 + p ball2 m1v1 + m2v2 isolate for the mass of ball 2 m2= (p total - m1v1) / v2 = (400 - 10(20))/ 20 = 200/20 = 10 kg Mark me as brainlest plz
