an object travels with speed of 20 metre per second for 10 seconds and 30 metre per second for 5 seconds find average speed
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Answer:
d1=s1*t1=20*10=200m
d2=s2*t2=30*5=150m
s avg=total distance/total time
=(200+150)/(10+5)
=350/15mps
Answered by
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Average speed = Total Distance / Total time
Distance = Speed × time
D1 = 20 ×10 = 200 m
D2 = 30×5 = 150 m
Average speed = 200+150/10+5
= 350/15 = 23 m/s
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