an object covers a distance of 16 km in 4s and again covers the distance of 16m in 2s . find the average speed of the object
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Explanation:
given
d1=16km=16000m
t1=4s
s1=d×t=16000×4=64000m/s
d2=16m
t2=2s
s2=d×t=16×2=32m/s
avg speed =s1+s2/2=64000+32/2=64032/2
=32016m/s
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total distance/total time.
16+16÷4+2
=32/6
= 5.33ms-1
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