When a swimmer pushes threw water to swim they are propelled forward because of the water resistance against the hand and feet.
10 would be the answer for number 3
<span> is the volume of fluid which passes per unit time; usually represented by the symbol Q (sometimes V̇).</span>
It shows that the airplane covers equal distance in equal time interval, that's it has a straight line from the origin.
The plane is moving at uniform speed.
I can help you with 5. 5 is a displacement-time graph.
At A it is moving in a positive direction and speed is constant.
At B it is stationary or at rest.
At C, movement is negative and it is decreasing or decelerating
At D, it’s a general downwards movement in the negative direction that can be described as overall constant
