Question

100m In 9 3/5 seconds

Answer 1

Answer:

Speed = 10.42 m/secs

Step-by-step explanation:

We have been given with:-

Distance = 100m

Time taken = 9$\frac{3}{5}$ secs

1) First, we need to convert the mixed number 9$\frac{3}{5}$ to an improper fraction.

Method to convert a mixed number to an improper fraction

$a\frac{b}{c} = \frac{c*a+b}{c}$

Applying the above formula, we get

9$\frac{3}{5}$ = $\frac{5*9+3}{5}$

= $\frac{45+3}{5}$

= $\frac{48}{5}$

2) Now we need to convert $\frac{48}{5}$ into a decimal by dividing 48 by 5.

We get time taken as 9.6 secs

3) We need to find the speed using the below formula:-

Speed = $\frac{Distance}{Time taken}$

Plugging the values of Distance and Time taken into the formula, we get

Speed = $\frac{100}{9.6}$

= 10.416 m/secs

4) Upon rounding it to the nearest hundredth, we get

Speed = 10.42 m/secs