Question

A cyclist for t second at a speed of 3ms and then for the same time at a speed of 5ms along a straight road due north what is the average speed of the cyclist
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Answer 1

Answer:

4m/s

Explanation:

time= t second

speed'1= 3m/s

speed'2=5m/s

distance'1= speed x t

= 3xt= 3t metre/second

distance'2= speed x time

=5 x t= 5t metre/second

average velocity= Total distance covered/total time taken

=(5t + 3t/ t + t)m/s

=(8t / 2t) m/s

=4m/s