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Speed1=20 m/s. time1=5sec speed2=30 m/s. time2=5sec speed3=15 m/s. time3=5sec find average speed?​
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16 votes
Speed1=20 m/s. time1=5sec

speed2=30 m/s. time2=5sec
speed3=15 m/s. time3=5sec


find average speed?​

User Jaimy
by
7.6k points

1 Answer

4 votes

Answer:

21.25 m/s

Step-by-step explanation:

AVERAGE SPEED=


= (s1 t1+ s2t2 + s3t3)/(t1 + t2 + t3)


= (20 * 10 + 30 * 5 + 15 * 5)/(10 + 5 + 5)


= (200 + 150 + 75)/(20)


= (425)/(20)


= 21.25 ms

User Aaronsw
by
8.6k points
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