A truck of mass 3000 kg traveling 5 m/s strikes a sedan stopped at a signal light. The two vehicles stick together. If the mass of the sedan is 2000 kg, at what speed does it move immediately after the collision? The correct answer: 3.57 m/s... My answer: 3.00 m/s

Question

A truck of mass 3000 kg traveling 5 m/s  strikes a sedan stopped at a signal light. The two vehicles stick together. If the mass of the sedan is 2000 kg, at what speed does it move immediately after the collision? The correct answer: 3.57 m/s... My answer: 3.00 m/s

anonymous · Answer

Your answer is correct, I dunno what to tell you.  Just make sure everything is written down properly.

anonymous · Answer

For some reason the book is giving 3.57 m/s but I keep getting 3.0 m/s.

anonymous · Answer

I agree, your answer is correct as well. The book is wrong, don't worry

anonymous · Answer

Thank you!

anonymous · Answer

Remember books go through many editions or reprints before they are mostly error free.