Question

Какую силу надо прикладывать чтобы поднимать на наклонной плоскости тележку массой 30 км, если высота наклонной плоскости 50 см, а ее длинна 3 м. Помогите пожалуйста

Answer 1

Дано:
m=30кг
h=50см=0,5м
s=3м
g=10м/с²
Найти:
F=?
Решение:
А₁=mgh
A₂ = Fs
А₁=А₂
mgh=Fs
F=mgh/s
F=30кг·10м/с²·0,5м / 3м = 50Н
Ответ:50Н

Answer 2

Calculation of the Force Required to Lift the Cart on an Inclined Plane

To calculate the force required to lift a cart on an inclined plane, we need to consider the weight of the cart and the angle of the incline. The force required can be determined using the formula:

Force = Weight of the Cart * sin(Angle of Incline)

In this case, the weight of the cart is given as 30 kg, the height of the inclined plane is 50 cm, and the length of the inclined plane is 3 m.

To calculate the angle of the incline, we can use trigonometry. The angle can be found using the formula:

Angle of Incline = arctan(Height of Incline / Length of Incline)

Let's calculate the angle of the incline first:

Angle of Incline = arctan(0.5 m / 3 m)

Using a calculator, we find that the angle of the incline is approximately 9.5 degrees.

Now, we can calculate the force required to lift the cart:

Force = 30 kg * sin(9.5 degrees)

Using a calculator, we find that the force required to lift the cart on the inclined plane is approximately 5.06 kg*m/s².

Therefore, to lift the cart on the inclined plane, a force of approximately 5.06 kg*m/s² needs to be applied.

Please note that the calculations provided are based on the given information and assumptions.