Question

A 10 kilogram cart is moving 5 m/s toward a motionless cart of unknown mass. The two carts collide, sending the second cart moving 6 m/s while the first cart slows to 3 m/s. What is the mass of the unknown cart? Show all work, including the equation and substitution with units

Answer 1

Answer:look at the picture below

Step-by-step explanation:

Answer 2

conservation of linear momentum:

m1u1+m2u2=m1v1+m2v2

m1(u1-v1)=m2(v2-u2)

10(5-3)=m2(6-0)

m2=10*2/6

m2 10/3

m2=3.3333kg