Question

Тело тормозила сила 4 кН путь тела 10 см найти работу силы

Answer 1

F 4кН=4000 Н.
s=10 см=0,1 м.
A=F*S=4000*0.1=400 Дж

Answer 2

Calculation of Force

To find the work done by a force, we need to know both the magnitude of the force and the distance over which the force is applied. In this case, the force is given as 4 kN (kilonewtons) and the distance is given as 10 cm.

To calculate the work done by the force, we can use the formula:

Work = Force x Distance

Converting the force from kilonewtons to newtons, we have:

Force = 4 kN = 4,000 N

Substituting the values into the formula, we get:

Work = 4,000 N x 10 cm

Conversion of Units

Before we proceed with the calculation, it is important to note that the units of force and distance need to be consistent. In this case, the force is given in newtons (N), but the distance is given in centimeters (cm). We need to convert the distance to meters (m) to match the unit of force.

Since 1 meter is equal to 100 centimeters, we can convert the distance as follows:

Distance = 10 cm = 10/100 m = 0.1 m

Now that we have both the force and distance in the same unit, we can proceed with the calculation.

Calculation

Substituting the values into the formula, we have:

Work = 4,000 N x 0.1 m

Calculating the product, we find:

Work = 400 Nm

Therefore, the work done by the force of 4 kN over a distance of 10 cm is 400 Nm.