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A car accelerate from 0 to 100 kmh in a 10 second What distance it makes ? How to calculate a distance for other value for time?

 Jan 2, 2015

Best Answer 

 #2
avatar+118608 
+5

 

100km/hour = 100000m/3600sec

You have t=10, u=0, v=100 and you need to find s

the only equation that has all of those letters and no others is [3]

100km

 

$$s=\frac{1}{2}(0+\frac{100000}{3600})*10 \;metres$$

 

$${\mathtt{0.5}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{100\,000}}}{{\mathtt{3\,600}}}}\right){\mathtt{\,\times\,}}{\mathtt{10}} = {\frac{{\mathtt{1\,250}}}{{\mathtt{9}}}} = {\mathtt{138.888\: \!888\: \!888\: \!888\: \!888\: \!9}}$$

 

The car will go 139 metres (to the nearest metre)

 Jan 5, 2015
 #1
avatar+360 
0

There is no possible way to answer this, 1st you would need to know the size of the cars wheels (because the size of the wheels make a difference in range) and then you would need to know how long you would like me to get, which would involve testing.

 #2
avatar+118608 
+5
Best Answer

 

100km/hour = 100000m/3600sec

You have t=10, u=0, v=100 and you need to find s

the only equation that has all of those letters and no others is [3]

100km

 

$$s=\frac{1}{2}(0+\frac{100000}{3600})*10 \;metres$$

 

$${\mathtt{0.5}}{\mathtt{\,\times\,}}\left({\frac{{\mathtt{100\,000}}}{{\mathtt{3\,600}}}}\right){\mathtt{\,\times\,}}{\mathtt{10}} = {\frac{{\mathtt{1\,250}}}{{\mathtt{9}}}} = {\mathtt{138.888\: \!888\: \!888\: \!888\: \!888\: \!9}}$$

 

The car will go 139 metres (to the nearest metre)

Melody Jan 5, 2015

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