Question

pls answer first one will be the brainliest ​

Answer 1

Explanation:

A donkey is carrying a load on its back: - In this case, force of gravity on the load is acting in the downward direction, ... The force exerted by the engine is in the direction of displacement of the train. Thus, the force and displacement are in the same direction. Therefore, work is done .

Answer 2

Answer:

1= yes a human can swim

2= donkey carry's load

3= no. wind will does not do

4= yes. every vehicles need a Engine