![ameliaxbowen7](/avatars/34295.jpg)
ameliaxbowen7
26.03.2021 •
Physics
A truck with a mass of 1370 kg and moving with a speed of 12.0 m/s rear-ends a 593 kg car stopped at an intersection. The collision is approximately elastic since the car is in neutral, the brakes are off, the metal bumpers line up well and do not get damaged. Find the speed of both vehicles after the collision in meters per second.
Solved
Show answers
More tips
- C Computers and Internet Boost your processor performance with these easy tips...
- L Leisure and Entertainment When will Maslenitsa start?...
- F Food and Cooking Discovering the Mysterious Fruit of Feijoa...
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Physics
- P Physics The speed of sound at sea level is normally about 340 m/s. A car honks itshorn as it drives toward an observer. The frequency of the horn is 800 Hz, but theobserver hears an 860-Hz...
- P Physics An object is launched horizontally at a velocity of 19 m/s from the top of a building. It falls vertically a distance of 24m before it reaches the ground. How long does this projectile...
- P Physics Granules on the surface of the sun appear to be plasma boiling. This is caused by in the plasma....
- P Physics Amoving object is in equilibrium. which best describes the motion of the object if no forces change? it will change directions it will slow down and stop. it will maintain its state...
- P Physics Which of the following is true? a line with a lower cycle time has greater output than one with a higher cycle time. a line with a higher cycle time has greater output than one...
- P Physics How is force related to acceleration and gravity?...
- P Physics An object accelerates from rest at a rate of 2m/s2. what will its velocity be after 4 seconds?...
- P Physics Abasketball referee tosses the ball straight up for the starting tipoff. at what velocity must a basketball player leave the ground to rise 1.25 m above the floor in an attempt...
- M Mathematics The graph shows the function f(x) = 2* What is the value of xwhen f(x) = 8?...
- E English You are on a holiday with friends in another area and are due to return home in four days time. Unfortunately, you have had an accident which will prevent you from travelling at...
Ответ:
speed of car after collision, v2 =16.1 m/s and of the truck, v1 = 4.6 m/s
Explanation:
Given:
mass of truck M = 1370 kg
speed of truck = 12.0 m/s
mass of car m = 593 kg
collision is elastic therefore,
Applying law of momentum conservation we have
momentum before collision = momentum after collision
1370×12 + 0( initially car is at rest) = 1370×v1+ 593×v2 (i)
Also for a collision to be elastic,
velocity of approach = velocity of separation
12 -0 = v2-v1 (ii)
using (i) and (ii) we have
So speed of car after collision, v2 =16.1 m/s and of the truck, v1 = 4.6 m/s
Ответ:
A
Explanation: