Two carts with masses of 11.7 kg and 2.5 kg move in opposite directions on a frictionless horizontal track with speeds of 6.6 m/s and 3.1 m/s, respectively. the carts stick together after colliding head-on. find their final speed. answer in units of m/s.
Solved
Show answers
More tips
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- D Dating, Love, Relationships How to Overcome Jealousy: Tips and Tricks...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- C Computers and Internet How to Learn to Type Fast?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- S Style and Beauty How to braid friendship bracelets?...
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- F Food and Cooking Which Calamari Salad is the Most Delicious?...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- F Food and Cooking The Most Delicious and Simple Fish in Batter Recipe...
Answers on questions: Physics
- P Physics Electricity is flow of tiny particles called...
- P Physics Write a story in which you received a negative feedback and how you reacted...
- P Physics An unbalanced force is at work when a. a book sits on a shelf b. a piece of paper is on the floor c, a glass sits on a table d. a model rocket takes offs...
- P Physics Which statement correctly describes the relationship between metals and magnets? 1.all metals are attracted to magnets because they are able to create their own magnetic field....
- P Physics 1. Which of the following theories about the Moon s origin has not been disproven? (5 points) O giant-impact theory O condensation theory Ofission theory capture theory...
- P Physics Find the mass of a circular moving object that has a centripetal force of 1345 N and an acceleration of 36.2 m/s2?...
- B Business What conclusion can be drawn about a successful salesperson? a. She has excellent people skills. b. She has experience as a manger. c. She has at least a bachelor s degree....
- M Mathematics A clown who is shot from a cannon lands in a net 50 feet away, write a eqatuion for the paraola...
- E English If you want comunicate without any limits in privat massages link below I m onl!ine:today...
- M Mathematics I’m not sure if I’m correct here. It’s properties of Angles. Can someone help me pls? Transition math...
Ответ:
5.98m/s
Explanation:
Since the two bodies collides, we go by the law of conservation of momentum which states that the sum of momentum of the body before collision is equal to their momentum after collision. Note that the two bodies moves with the same velocity (v) after colliding.
Let m1 and m2 be the masses of the two carts and u1 and u2 be their velocities respectively. If v is their common velocities, according to the law above
m1u1+m2u2 = m1v+m2v
Note that momentum = mass × velocity
Given m1 = 11.7kg m2 = 2.5kg u1 = 6.6m/s u2 = 3.1m/s final speed (v) = unknown
Substituting this values in the formula we have
11.7(6.6)+2.5(3.1) = (11.7+2.5)v
77.22+7.75 = 14.2v
84.97 = 14.2v
V = 84.97/14.2
V = 5.98m/s
Their final speed is 5.98m/s
Ответ:
4.80can left a few days