Question

a bicycle increase its velocity from 10 kilometres per hours to 15 kilometres in 60 second find its acceleration​

Answer 1

Answer:

5/216 m/s²

Explanation:

Initial velocity of the bicycle (u) = 10 Km/h = 10(5/18) = 5 * 5/9 = 25/9 m/s

Final velocity of the bicycle (v) = 15 Km/h = 15(5/18) = 75/18 m/s

Time(t) = 60 seconds

We know that Acceleration = Change in velocity/Time

Acceleration (a) = v - u/2

= (75/18 - 25/9)÷60

= {75/18 - (25 * 2)/(9 * 2)} ÷ 60

= (75/18 - 50/18) ÷ 60

= (25/18) ÷ 60

= 25/(60 * 18)

= 25/1080

= 5/216 m/s²