0
If the average speed of a car is 80mph and it started from rest what is its final speed?
Wiki User
∙ 15y ago
Vavg = (Vi + Vf)/2 Vi = 0 Vavg = Vf/2 Vf = 2*Vavg Vavg = 80 Vf = 160
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Emily jogs 3 laps at the track to warm up. she jogs at 5mph. then she runs 3 more laps at 7 mph. what is true about her average speed and her average velocity?
Her average speed is greater than her average velocity.
Average speed is the rate at which an object is moving at a given instant?
No. Average speed is the rate an object is moving measured over more than an instant, such as one second, one minute, or something like that. Instantaneous speed, however, is the limit of the average speed as the interval of time approaches zero, i.e. at a given instant.
What is speed of motion?
The average speed of motion is when speed is changing. Speed equals total distance divided by total travel time. Velocity is the speed and direction of an object's motion.
A bus travel 240 kilometers in 2 hours what is its average speed in kilometers per minute?
The bus' average speed is two (2) km per minute.
Does the speedometer of a car read average speed or instaneous speed?
In a car, the speedometer measured Instantaneous speed. This comes from the assumption that the car does not slow down and speed up fast enough for the speedometer to be able to give an average of the changing speed.
Average speed of a cloud?
60-80mph
How far can you drive in 6 hours?
Depends entirely on your average speed. If your average speed is 80mph then you can travel (80x6) 480 miles in 6 hours.
If a man climbs up the hill at 80mph and comes down at 90mph at an altitude of 200m what is his average speed?
85
Average speed of cars in the 20th century?
Between 80mph and 120 mph, high performance cars were usually between a top speed of 100 to 140.
Top speed of a Honda TRX450R?
80mph
Top speed kx250f?
130kmph 80mph
Top speed of 2010 yz 250f?
about 80mph
A can rolled down an incline and accelerated at a uniform rate It started from rest a speed of 0 ms and reached the bottom of the incline moving with a speed of 1.8ms state the average speed?
For uniform acceleration the average speed is the initial speed plus the final speed divided by two.
Why do you have to multiply the average speed of a ball going down a ramp by 2 in order to find its final speed?
The last moment, the speed is the final, the first moment, the speed is zero, average=final /2. For the bit just before the final, and the bit an equal bit just after the start the average is again final/2. For every instant before the final, coupled with the same instant after the start, the average is final/2. So the average for the whole trip is final/2. So to get the final, multiply the average by 2.
How do you find the time given only the distance and the initial and final velocity?
Average speed = 1/2 (initial speed + final speed) Time = (distance)/(average speed)
What is the top speed of a cr 250?
depends on gearing but stock around 70-80mph Pete Purvisial - Piston muncher
What is the top speed of a 250cc Yamaha dirt bike?
80mph
