Question

Convert the following into S.I. units a) 1/9h b) 1/120min

Answer 1

Explanation:

S.I. unit of time is second

one hour is equal to 60×60 seconds

so 1/9 h=1/9×60×60=400seconds

one minute is equal to 60sec

1/120 min= 1/120×60=0.5seconds

hope it will be helpful

Answer 2

Answer:

a) 400 s

b) 0.5 s

Explanation:

a) 1 h = 3600 s

=> 1 / 9 h = 3600 / 9 = 400 s

b) 1 min = 60 s

=> 1 / 120 min = 60 / 120 = 1 / 2 = 0.5 s

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