Question

Q14. Scott Jacobs won the 100 m car race in 20 seconds. Sally Malin won the 200 m
race in 39 seconds. Who was the fastest, Scott or Sally?
(Write the formula and show calculations)​

Answer 1

Answer:

Sally Malin was fastest

Step-by-step explanation:

In order to find who was the fastest either Scott or Sally, we must find their speed in their journey.

We know that,

Speed = Distance/Time

• For Scott :

Distance = 100m

Time = 20 sec

Speed = Distance/Time = 100/20 = 5 m/sec

Hence, speed of Scott = 5 m/sec

• For Sally :

Distance = 200 m

Time = 39 sec

Speed = Distance/Time = 200/39 = 5.1282 m/seconds

Hence, speed of Scott = 5.1282 m/sec

From above outcomes, we can see that,

5.1282 m/sec > 5 m/sec

Hence, speed of Sally > Speed of Scott

Thus, Sally Malin was fastest.