slobodan48 said:how do you find the Tension force,acceleration,magnitude.
Its those questions where you have pullys,boxes pushing each other...
I am really confused for the 3rd law
Newton's 3rd Law states that for every action, there is an equal and opposite reaction. This means that when an object exerts a force on another object, the second object will exert an equal and opposite force back on the first object.
Newton's 3rd Law applies to everyday life in many ways. For example, when you walk, your feet push against the ground and the ground pushes back, propelling you forward. When you throw a ball, your hand exerts a force on the ball and the ball exerts an equal and opposite force on your hand. When you sit on a chair, your body exerts a downward force on the chair and the chair exerts an equal and opposite upward force on your body.
One example of Newton's 3rd Law in nature is when a bird flaps its wings to fly. The downward motion of the wings creates an upward force on the air, and the air reacts by pushing the bird upwards. This allows the bird to stay airborne and fly.
Newton's 3rd Law is closely related to the concept of momentum, which is the product of an object's mass and velocity. According to Newton's 3rd Law, when two objects interact, they exert equal and opposite forces on each other. This means that the momentum lost by one object is gained by the other object, keeping the total momentum of the system constant.
Newton's 3rd Law is used in various sports, such as swimming, soccer, and baseball. In swimming, the swimmer pushes against the water in order to move forward, and the water pushes back with an equal and opposite force. In soccer, when a player kicks the ball, their foot exerts a force on the ball and the ball exerts an equal and opposite force back, propelling it forward. In baseball, when a pitcher throws a ball, their arm exerts a force on the ball and the ball exerts an equal and opposite force back, allowing it to travel towards the batter.