Please answer my question as soon as possible. Is really urgent.
Dear student,
1. A sharp knife cuts more effectively than a blunt knife as it has a very small surface area and exerts more pressure.
2. A school bag has a wide strap made of thick cloth so that the weight of the bag falls over a large area of the shoulder of the child.
This produces less pressure on the shoulder and hence the child can carry heavy school bags more comfortably.
3. A nail has a pointed edge so that it exerts more thrust or pressure.
4. The tip of a sewing needle is sharp enough to produce more pressure.
5.Edge of an arrow.
6. Edges of tools used to pierce things are sharp enough to produce more pressure.
7. Toys given to children do not have any sharp edge.
8. The tires of buses and trucks have broad and double wheels so that the pressure on the tires is reduced and they do not brust. The bigger the wheels, the less is the pressure on them, so that they can carry greater weight.
9. we prefer to wear flat shoes in comparison to heel, as with heel, the contact area is less, that's why pressure exerted on our feet, is much higher.
10. The cushions provided on the sofa helps to produce less pressure on our back. Similarly cement blocks (sleepers) beneath rails provide less pressure on the railway track
regards,
1. A sharp knife cuts more effectively than a blunt knife as it has a very small surface area and exerts more pressure.
2. A school bag has a wide strap made of thick cloth so that the weight of the bag falls over a large area of the shoulder of the child.
This produces less pressure on the shoulder and hence the child can carry heavy school bags more comfortably.
3. A nail has a pointed edge so that it exerts more thrust or pressure.
4. The tip of a sewing needle is sharp enough to produce more pressure.
5.Edge of an arrow.
6. Edges of tools used to pierce things are sharp enough to produce more pressure.
7. Toys given to children do not have any sharp edge.
8. The tires of buses and trucks have broad and double wheels so that the pressure on the tires is reduced and they do not brust. The bigger the wheels, the less is the pressure on them, so that they can carry greater weight.
9. we prefer to wear flat shoes in comparison to heel, as with heel, the contact area is less, that's why pressure exerted on our feet, is much higher.
10. The cushions provided on the sofa helps to produce less pressure on our back. Similarly cement blocks (sleepers) beneath rails provide less pressure on the railway track
regards,
