Answer:
[tex] \pink{ \mathbb{{SOLUTION:-}}}[/tex]
Given:-
- Distance travelled=400 m
- Time taken=40sec
- Speed=?
We know that;
[tex] \displaystyle{ \mathbb{SPEED = \frac{DISTANCE \: TRAVELLED}{TIME \: TAKEN} }}[/tex]
[tex] \displaystyle \mathbb{ = \frac{400 \: m}{40 \: sec} }[/tex]
[tex] \displaystyle{ \mathbb{ = 10m/s}}[/tex]
