Question

Give three examples of action-reaction pairs

Answer 1

Newton's third law of motion states that for every action, there is an equal and opposite reaction. Here are three examples of action-reaction pairs: swimmers pushing off walls, helicopters creating lift by pushing air down, and octopuses propelling themselves forward by ejecting water from their bodies.

Step-by-step explanation:

Newton's third law of motion states that for every action, there is an equal and opposite reaction. This means that whenever an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction. Here are three examples of action-reaction pairs:

1. A swimmer pushing off a wall: When a swimmer pushes against a wall, the swimmer exerts a force on the wall in one direction, while the wall exerts an equal and opposite force on the swimmer, propelling the swimmer forward.
2. Helicopters creating lift by pushing air down: As a helicopter's rotor blades push air downwards, the air exerts an equal and opposite force on the blades, allowing the helicopter to lift off the ground.
3. An octopus propelling itself forward by ejecting water from its body: When an octopus forcefully expels water from its body, the water exerts an equal and opposite force on the octopus, causing it to move forward.

Answer 2

Walking,horse pulling the cart, firing of a gun

Step-by-step explanation:

when we walk we exert force on earth, earth exerts equal force of us

horse applys force in in opposite direction on earth,earth applys equal force and it pulls the cart

when we fire a gun,it apply equal force of us.It is called recoil velocity of a gun