Question

A 1.5 kg rolling pin rolls along a countertop at 6.0 m/s. It collides with and sticks to a 200 g lump of dough. The doughy rolling pin continues along the countertop. What is the final speed of the doughy rolling pin?

Answer 1

Use
m1*u1+m2*u2=m1*v1+m2*v2
m1*u1+m2*u2=(m1+m2)v
v=?

Answer 2

Response plz!!"