Question

Sandra runs A new personal best in the hundred meter dash her average speed is 7.4 m/s how long to the nearest hundredth does it take her to run the race

Answer 1

Answer:

$13.51\ \text{s}$

Step-by-step explanation:

$s$ = Average speed of Sandra = $7.4\ \text{m/s}$

$d$ = Distance Sandra ran = $100\ \text{m}$

Time is given by

$t=\dfrac{d}{s}$

$\Rightarrow t=\dfrac{100}{7.4}$

$\Rightarrow t=13.51\ \text{s}$

The time it takes Sandra to run the given distance is $13.51\ \text{s}$.