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svet-max [94.6K]
3 years ago
11

is%20%5C%3A%2020m%20%5C%3A%20%20%7Bs%7D%5E%7B%20-%201%7D%20" id="TexFormula1" title="If \: the \: speed \: of \: a \: car \: is \: 20m \: {s}^{ - 1} " alt="If \: the \: speed \: of \: a \: car \: is \: 20m \: {s}^{ - 1} " align="absmiddle" class="latex-formula">
then \: what \:  is \: its \: speed \: in \: km \:  {h}^{ - 1}
Step by step explanation needed :)
________________________________
Question In a easy way -

If the speed of a car is 20 m s^-1 then what is its speed in km h^-1 ?
​
Physics
2 answers:
nadezda [96]3 years ago
7 0

Answer:

72 km/h

Explanation:

Speed of car = 20m/s

So, here to find the speed in km/h we will change the metre to km and seconds to hours .

=>

\frac{20}{1000}  \div  \frac{1}{3600}

= 72 km/hr

to change into km divide by 1000

(1 m = 1/1000km)

and,

to change into hours divide by 60*60= 3600

help kiya kya?

Vilka [71]3 years ago
6 0

hope it helps

mark as brainlist

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Answer:

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Part b)

If ball is not rolling and just sliding over the hill then in that case

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Answer:

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