Question

body covers a distance of 2m from point P to point Q in a straight line in 40 s and from Q to P in 1minute. What is its average speed?

Answer 1

$\huge{\red{\mathtt{\underline{Answer:}}}}$

Average speed —» $\mathtt{\frac{Total\:Distance}{Total\:time\:taken}}$

Total time taken —» ( 40 + 60 ) s —» 100s .

Total distance travelled —» 2m + 2m —» 4m .

Average speed —» $\mathtt{\frac{4m}{100s}}$

—» $\mathtt{\frac{1m}{25s}}$