According to the third law of motion,action and reaction

What force would be needed to produce an acceleration of $4 \, m s^{-2}$ on a ball of mass $6 \, kg$?

$A$ large truck and a car,both moving with a velocity of magnitude $v$,have a head-on collision and both of them come to a halt after that. If the collision lasts for $1$ second:
$(i)$ Which vehicle experiences the greater force and why?
$(ii)$ Which vehicle experiences the greater change in momentum and why?
$(iii)$ Which vehicle experiences the greater acceleration and why?

If a man jumps out from a boat to the bank of the river,the boat moves backwards. Identify the action and reaction in this situation.

Give two examples in each case,of a force that:
$(i)$ lifts
$(ii)$ pushes
$(iii)$ pulls
$(iv)$ stretches
$(v)$ compresses
$(vi)$ resists
$(vii)$ attracts
$(viii)$ squeezes

Two forces $F_{1} = 20 \, N$ and $F_{2} = 30 \, N$ are acting on an object in opposite directions as shown in the figure.
$(i)$ What is the net force acting on the object?
$(ii)$ What is the direction of the net force acting on the object?
$(iii)$ If the mass of the body is $10 \, kg$,what will be the acceleration produced in it?