For each situation say how the ideas of force pressure and area can be applied. 1. It hurts to walk on sharp stones but not on round. 2. Hockey boots have stud. 3. A farmer hammers a pole into a ground that has been sharpened.
Answers
Answer:
2. this is coz less area is there so more pressure.
3. coz more area less pressure.
4. coz less pressure more area
it is just that if pressure increases area decreases and vice versa. in all the situations above these two r used in order to adjust in their respective situations.
5.0
Explanation:
As the leg tries to move forward, the frictional force, in order to avoid the relative motion, acts in the forward direction on the foot. Assuming the ground is rough enough, the force manages to keep the foot in place.
2. The studs reduce the area in contact between the feet of the player and the ground. AS the weight of the player acts over a smaller area, the preasses on the ground with increaseed pressure. As a result, the feet of the player sink into the turf on the play ground and grip the surface more firmly
3.