tikerfikerr16 tikerfikerr16

11-05-2022
Physics

contestada

speed1=20 m/s. time1=5sec
speed2=30 m/s. time2=5sec
speed3=15 m/s. time3=5sec

find average speed?

Respuesta :

Аноним Аноним

11-05-2022

Answer:

21.25 m/s

Explanation:

AVERAGE SPEED=

[tex] = \frac{s1 t1+ s2t2 + s3t3}{t1 + t2 + t3} [/tex]

[tex] = \frac{20 \times 10 + 30 \times 5 + 15 \times 5}{10 + 5 + 5} [/tex]

[tex] = \frac{200 + 150 + 75}{20} [/tex]

[tex] = \frac{425}{20} [/tex]

[tex] = 21.25 ms[/tex]

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