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Mr Hoffmana science teacher drove 10 miles to school in 20 minutes He drove the 10 miles home in 30 min His average velocity was?
Wiki User
∙ 8y ago
Well, speed is equal to distance over time (s = d/t)
However, velocity means speed WITH direction. This means that the teacher's drive to school would be a positive velocity, but the drive back would be a negative one.
Now, let's calculate velocities using the s = d/t formula!
- Distance to school from home:
speed = distance/time
speed = +10 miles/20 minutes
speed = 1/2 miles per minute
- Distance from school to home:
speed = distance/time
speed = -10miles/20 minutes
speed = -1/3 miles per minute
Note: the velocity towards home will be negative since we are travelling in the opposite direction of the distance to school (which is positive)
We have our two velocities- let's calculate the average!
1/2 -1/3 = 1/6
1/6 divided by 2 = 1/12
Thus, our average velocity is 1/12 miles per minute! You can convert this into decimal values if required.
Hope this helped! (:
peanutbutterjelly
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Mr Hoffman a science teacher drove 10 miles to school in 20 minutes He drove the 10 miles home in 30 min His average velocity was?
zero
A science teacher drove 10 miles to school in 20 minutes He drove the 10 miles home in 30 min His average velocity was ms?
He drove 20 miles in 50 min. so average was 20 x 60/50 = 24 mph
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Mr Hoffman a science teacher drove 10 miles to school in 20 minutes He drove the 10 miles home in 30 min His average velocity was?
zero
Mr Hoffman is a science teacher that drove 10 miles to school in 20 minutes and he drove the 10 miles home in 30 min so his average velocity was ms?
0 m/s appex
A science teacher drove 10 miles to school in 20 minutes He drove the 10 miles home in 30 min His average velocity was ms?
He drove 20 miles in 50 min. so average was 20 x 60/50 = 24 mph
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