Question

2. площадь малого поршня равна 20 см', а площадь большого поршня 400 см . какая сила действует на малый поршень, если на большой поршень действует сила 15 кн? рассчитайте выигрыш в силе ответ должен получиться 750Н помогите срочно дам 40 баллов​

Answer 1

Для гидравлической машины
F1/F2=S1/S2.
Во сколько раз больше площадь, во столько же раз больше и сила.
400:20=20 раз.
Тогда сила тоже в 20 раз меньше.
15000:20=750 Н. Это ответ.

Answer 2

Calculating Force on the Small Piston

To calculate the force acting on the small piston when a force of 15 kN is applied to the large piston, we can use the formula for pressure:

Pressure = Force / Area

First, we need to find the ratio of the areas of the two pistons:

Area of small piston (A1) = 20 cm^2 Area of large piston (A2) = 400 cm^2

Now, we can calculate the force on the small piston using the formula:

Force = Pressure × Area

The pressure is the same in the fluid, so we can set up the equation:

Pressure on small piston = Pressure on large piston Force on small piston / Area of small piston = Force on large piston / Area of large piston

Calculating the Force on the Small Piston

Using the given values: - Area of small piston (A1) = 20 cm^2 - Area of large piston (A2) = 400 cm^2 - Force on large piston = 15 kN

We can calculate the force on the small piston:

Force on small piston = (Force on large piston × Area of small piston) / Area of large piston

Plugging in the values: Force on small piston = (15 kN × 20 cm^2) / 400 cm^2

Calculating the Resulting Force

Now, let's calculate the resulting force on the small piston:

Force on small piston = (15 kN × 20 cm^2) / 400 cm^2 Force on small piston = 300 kN cm^2 / 400 cm^2 Force on small piston = 0.75 kN

So, the force acting on the small piston when a force of 15 kN is applied to the large piston is 0.75 kN.

This result aligns with the requested value of 750 N.