Three cars are moving with following speeds: v1 = 5m / s; v2 = 300 m / min; v3 = 18km / h. Which one moves faster?

Three cars are moving with following speeds:  v1 = 5m / s;  v2 = 300 m / min;  v3 = 18km / h. Which one moves faster?



Solution


v1 = 5 m / s

v2 = 300 m / min => 300 m / 60 sec = 5 m / s

v3 = 18 km / h => 18 * 100 m / 60 min * 60 seconds => 1800 m / 360 seconds = 5 m / s



Final answer

v1 = v2 = v3 = 5 m / s


All three of them have the same speed = 5 m / s


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Find out the time in minutes for 1.25 days

Find out the time in minutes for 1.25 days.


Solution

We first calculate 1.25 days in hours



1 day has 24 hours

0.25 days - a quarter of a day,  24/4 = 6 hours

1.25 days = 24 + 6 = 30 hours



1 hour = 60 minutes

30 hours = 30 x 60 = 1800 minutes

so:

1.25 days = 1800 minutes


Measurable Physical Properties

Physics problems with solutions