Answer:
200J
Explanation:
work done = force x distance
= 20 x 10
= 200J
And what finish the question
Im pretty sure the answer would be thermometer
Answer: 0 km/h
Explanation:
As a vector, the plane's velocity is 100 km/h (west) - 100 km/h (east) = 0 km/m.
To an observer on the ground, the plane will be standing still.