mckinneypaige9544
25.05.2021 •
Physics
Earth's axis of rotation passes through the planet from the North Pole to the .
Prime Meridian
Prime Meridian
Equator
Equator
South Pole
South Pole
Core
Solved
Show answers
More tips
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- F Food and Cooking How to cook crayfish? Everything you need to know...
- G Goods and services LED-подсветка в LCD-телевизорах: 5 причин, почему она лучше других технологий...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
Answers on questions: Physics
- P Physics HURRY PLS The steps of the scientific method are listed below. Check the box next to each step of the scientific method that you think communication plays an important...
- P Physics A small pond is warmed by the summer sun to 40°C the salanity is 5g/kg due to minerals being in the area and increased evaporation due to the season. What is the amount...
- P Physics Match what is seen through a telescope in column a with the information that is learned from it in column b. column a 1. the visible light spectrum emitted by a star...
- P Physics What two forces are there when you skydive...
- P Physics Why do liquids expand more than solids?...
- P Physics You and a friend are both standing at either end of a long, stationary, skateboard on level ground. there is zero friction in the bearings of the wheels. which of...
- P Physics Matthew starts from rest on top of 8.45 m high sledding hill. he slides down the 32-degree incline and across the plateau at its base. the coefficient of friction...
- P Physics Why filament lamp is filled with nitrogen and inert gas...
- P Physics PHYSICS An hyperbola occurs naturally when two nearly identical glass plates in contact on one edge and separated by about 5 millimeters at the other edge are dipped...
- P Physics What is the equation for magnification?...
Ответ:
Before I reveal the car's average velocity,
let me calculate the car's average SPEED:
Average speed = (total distance covered) / (time to cover the distance)
Total distance covered = (15km + 15km) = 30 km
Time to cover the distance = (10min + 5min) = 15 minutes = 1/4 hour
Average speed = (30km) / (1/4 hour)
Average speed = 120 km per hour
Average velocity = (displacement) / (time in motion)
Displacement = (straight-line distance and direction from start to finish)
Time in motion = (time between starting and finishing)
This car finished at the same point it started from,
so its displacement was zero.
Time in motion = (10min + 5min) = 15 minutes = 1/4 hour
Average velocity = (Zero) / (1/4 hour)
Average velocity = Zero .