+13 During a race Ali ran the first 300 metres in 2 mins 10 secs and the last 100 metres in 30 secs. What was his average speed in m/s?
I need a little help with this. I think I know the answer but I'm not sure if its correct. Please help me out.
+118687 Hi Gotcha,
During a race Ali ran the first 300 metres in 2 mins 10 secs and the last 100 metres in 30 secs. What was his average speed in m/s?
$$\\\frac{300+100metres}{2min+40seconds}\\\\
=\frac{400metres}{120+40seconds}\\\\
=\frac{400metres}{160seconds}\\\\
=\frac{5metres}{2seconds}\\\\
=2.5\;m/s$$
+118687 Hi Gotcha,
During a race Ali ran the first 300 metres in 2 mins 10 secs and the last 100 metres in 30 secs. What was his average speed in m/s?
$$\\\frac{300+100metres}{2min+40seconds}\\\\
=\frac{400metres}{120+40seconds}\\\\
=\frac{400metres}{160seconds}\\\\
=\frac{5metres}{2seconds}\\\\
=2.5\;m/s$$
