Question

A car is running at 20 m/s . How much distance will it cover in 2 hours 20 minutes.
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Answer 1

$\sf{speed \: of \: car = 20ms {}^{ - } }$

$\sf{time = 2hours20minutes \: = 8400secons}$

$\: \: \: \: \: \pink{\boxed{ \sf \red{distance = speed \times time}}}$

$\sf{distance \: = 20 \times 8400 = 168000m}$

$\: \: \: \: \: \: \: \: \: \: \: \: = > \sf{168 \: km}$

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Answer 2

Step-by-step explanation:

$first \: we \: will \: convert \: time \: to \: seconds \\ so \: 2hr \: 20 \: minutes \: = (2(60) + 20) \times 60 \\ (120 + 20) \times 60 \\ 140 \times 60 \\ 8400 \\ distance \: = speed \times time \\ 20 \times 8400 \\ 168000 \: metres \\ so \: distance \: covered = 168 \: km$