Question

The table shows information about four students who are running around a track. Which statement is supported by the information in the chart?

Chart

vvvvvvvvvvvvvvvvvvvvvv

Autumn 50 kg 4 m/s

Mohammed 57 kg 3 m/s

Lexy 53 kg 3 m/s

Chiang 64 kg 5 m/s



Which statement is supported by the information in the chart?


Autumn has more kinetic energy than Chiang.

Mohammed has less kinetic energy than Autumn. This is the answer. I got tiered of waiting

Lexy has more kinetic energy than Mohammed.

Chiang has less kinetic energy than Lexy.

Answer 1

Answer is B. Mohammed has less kinetic energy than Autumn.

Step-by-step explanation:

Got It Right! :D

Answer 2

Mohammed has less kinetic energy than Autumn

Step-by-step explanation:

The kinetic energy of each student is given by:

`K=(1)/(2)mv^2`

where

m is the mass of the student

v is the speed of the student

Let's use the formula above to calculate the kinetic energy of each student:

- Autumn:
`K=(1)/(2)(50 kg)(4 m/s)^2=400 J`

- Mohammed:
`K=(1)/(2)(57 kg)(3 m/s)^2=256.5 J`

- Lexy:
`K=(1)/(2)(53 kg)(3 m/s)^2=238.5 J`

- Chiang:
`K=(1)/(2)(64 kg)(5 m/s)^2=800 J`

Therefore, by looking at the numbers, we see that the correct answer is

Mohammed has less kinetic energy than Autumn