The motion of the woman as she goes to the corner shop and back involves various forces acting upon her. Let's break down her motion into different stages:
1. Starting Position: Initially, the woman is at rest or standing still. She exerts a downward force on the ground due to her weight, which is balanced by the equal and opposite reaction force exerted by the ground on her.
2. Walking: To start moving towards the corner shop, the woman takes a step forward. This action applies a force on the ground using her leg muscles. As per Newton's third law of motion, the ground reacts by exerting an equal and opposite force on the woman's foot in the backward direction. This force allows her to propel herself forward.
3. Inertia: Once the woman starts moving, her body tends to maintain its state of motion. This is due to inertia, which is the property of matter to resist changes in its velocity. As she walks, her body's inertia keeps her moving in a straight line unless acted upon by an external force.
4. Friction: As the woman walks, there is a force called friction, opposing her motion. Friction occurs due to the interaction between the soles of her shoes and the ground. It acts in the opposite direction to her motion, causing a resistance that she must overcome by exerting a force.
5. Stopping and Changing Direction: When the woman reaches the corner shop, she needs to stop. To do so, she exerts a force in the opposite direction of her motion, using muscles in her legs or by applying brakes on her bike if she's using one. This force counteracts her forward momentum, eventually bringing her to a halt. If she needs to change direction, she exerts a sideways force to initiate a turn.
6. Returning: On the way back from the corner shop, the woman's motion will be similar to her journey towards it. She will continue to exert forces to move forward, overcome friction, and stop or change direction as needed.
In summary, as the woman goes to the corner shop and back, her motion involves exerting forces to push against the ground, maintaining her momentum through inertia, overcoming friction, and applying forces to stop or change direction.
Force and Motion.
Explain the motion of the woman as she goes to the corner shop and back.
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