Compare the motion of three bicycles. Which bicycle was moving at the highest speed?
a bicycle that moved 75miles south in 10hours a bicycle that moved 145miles east in 10hours a bicycle that moved 95miles south in 10hours
An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the mile.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects moving for the same amount of time. The object that is moving the fastest will go the farthest distance in that time. It is moving at the highest speed.
Look at the distance each bicycle moved and the time it took to move that distance. The direction each bicycle moved does not affect its speed.
Notice that each bicycle moved for 10 hours. The bicycle that moved 145 miles moved the farthest distance in that time. So, that bicycle must have moved at the highest speed.