O Question 4
1 pts
You jog around 180m track 4 times in 30 minutes. What is your average speed in
m/s? (Hint: Convert min to seconds first)
O 0.4 m/s
O 6 m/s
O 24 m/s
O O m/s

0.4m/s

Explanation:

It is given speed so it is scalar.

distance covered in 1 round = 180m

therefore, distance covered in 4 rounds = 180*4 = 720m

time = 30 mins = 30*60 = 1800 seconds

average speed = total distance/total time taken

= 720/1800

= 0.4m/s

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )