A fish uses its fins to push water backwards and propel itself forwards.
When we walk on the ground our foot pushes the ground backward, and in return, the ground pushes our foot forward. The forward reaction exerted by the ground pushes our foot forward. The forward reaction exerted by the ground on our foot makes us walk forward.
The person's feet push backward on the sidewalk; the sidewalk pushes forward on the person.
It pushes the boat forward.
The plane is propelled forward by its engines, which generate thrust by expelling exhaust gases at a high velocity. This thrust creates a force that pushes the plane through the air and allows it to overcome drag and move forward.
a fish filter cleans the water and a pump pushes it through a fish filter cleans the water and a pump pushes it through
inspiration
swallowing
'Thrust' pushes against it from the rear, and 'drag' pushes against it from the front.
the presure pushes you foward or backward
thrust
If the rider pushes down on the forward side, the top run of the chain goes tight, the rear Wheel begins to turn and the bike starts to move forward.
Flagellum