4.6 seconds on the 40m sprint is about average, but it really depends on your body type. A big, muscular guy might run a 4.59, but that doesn't mean he is average. A thin guy might run a 4.6, at that might make him average or even worse. It really depends on your body type. For example, if you have a 6'2" 250 lbs. linebacker run and a 6'2" 180 lbs. punter run the 40m sprint, which do you expect will win? The 6'2" 180 lbs. punter because he has less weight to carry. If they both run the same time, you can expect that the 6'2" 250 lbs. linebacker is pretty fast for his body type. Hope this isn't too confusing!
Average speed is not measuring the distance traveled in total, as that is total distance. For example, if a car travels 30 miles in 1 hour and 90 miles in the next 2 hours, the average speed is not calculated as (30 + 90) / 3 hours.
Average speed is the distance traveled divided by the time taken, and it is a scalar quantity. Average velocity is the displacement divided by the time taken, and it is a vector quantity that includes direction. Average speed and average velocity are only equal when an object moves in a straight line, but when there are changes in direction, they can be different.
An example of non-instantaneous speed would be the average speed of a car over a distance of 100 miles, calculated by dividing the total distance traveled by the total time taken to cover that distance.
To find the average speed of a cyclist, divide the total distance traveled by the total time taken to travel that distance. For example, if a cyclist covers 30 miles in 2 hours, the average speed would be 15 miles per hour (30 miles divided by 2 hours).
Distance divided by the time it takes to cover the distance, equals average speed per unit of time. For example: An object takes 0.5 seconds to cover 1 foot. 1 divided by 0.5 equals 2 (1/0.5=2) so it is traveling at an average speed of 2 feet per second.
Average speed is not measuring the distance traveled in total, as that is total distance. For example, if a car travels 30 miles in 1 hour and 90 miles in the next 2 hours, the average speed is not calculated as (30 + 90) / 3 hours.
Apart from the fact that they are average, nothing. For example, the average time I spend sleeping has nothing to do with any average speed.
No, it can't. Average VELOCITY can be zero, though.
This will happen any time the speed changes over time.
donkeys is the clue
Yes. For example, if you drive exactly 65 MPH consisently for an hour, your average speed will also be 65 MPH.
Yes, a body can have a nonzero average speed but zero average velocity if it moves around a closed path and returns to its starting point. For example, if a car travels around a circular track at a constant speed, its average speed will be nonzero (as distance is covered), but its average velocity over the entire trip will be zero as the displacement is zero.
When an object is moving along a straight line at a variable speed, we can express the magnitude of the rate of motion in terms of average velocity.It is the same way as we calculate average speed.
Since speed is a scalar quantity, the only way the average speed can be zero is if the instantaneous speed is at all times zero, making it not a moving body, so no on the average speed. The average velocity, on the other hand, can easily be zero. The simplest example is you running in a circle.
No. If you divide a distance by a speed, you get a time, not a speed. For example, (meters) / (meters/second) = (seconds).
Velocity (or speed) = Distance ÷ Time In this example, speed = 300/6 = 50 kph
Velocity (or speed) = Distance ÷ Time In this example, speed = 120/2 = 60 kph