His velocity was zero - since he's back to where he started. (Try to substitute speed where appropriate.)
Every time the unicycle returns to its starting point, the average velocity equals zero. The total displacement divided by the time.
You say the track is 400m, then ask how far you have run after 18 laps. Your distance is 2 miles. Your average speed is 9min per mile. apex- 0
Yes, if, for example, a car races around a circuit, its total displacement is zero and so its velocity, at the end of every lap, is zero.
NO,velocity changes.
Yes, the lazy bum has done no work at all.
His velocity was zero - since he's back to where he started. (Try to substitute speed where appropriate.)
His velocity was zero - since he's back to where he started. (Try to substitute speed where appropriate.)
Ten laps = 10*.25 = 2.5 miles. 2.5 miles in 15 minutes = 2.5/15 miles per minute = 60*2.5/15 or 10 miles per hour.
0 m/s
0 (apex)
His velocity was zero - since he's back to where he started. (Try to substitute speed where appropriate.)
Orbital velocity is the average velocity (or speed) of a planet as it orbits around the sun. It is usually expressed as km/s or mph.
their average speed is greater than their average velocity.
Wind
Their average speed is the harmonic mean of 30 and 45 while their average velocity is zero.
Average - around 45000
Every time the unicycle returns to its starting point, the average velocity equals zero. The total displacement divided by the time.