Question

Дано: Fт=10кН V=7 км/ч T=8ч Найти A работу

Answer 1

A=FScosa

S=56 км

A=10*10^3*56=560*10^3 Дж.

Ответ: 560*10^3 Дж.

Answer 2

Given Information:

- Force (Fт) = 10 кН - Velocity (V) = 7 км/ч - Time (T) = 8 ч

Calculating Work (A):

To calculate the work (A), we can use the formula:

A = Fт * S

Where: - A is the work done - Fт is the force applied - S is the distance traveled

To find the distance traveled (S), we can use the formula:

S = V * T

Where: - S is the distance traveled - V is the velocity - T is the time

Let's calculate the distance traveled (S) first using the given velocity and time:

S = 7 км/ч * 8 ч

Converting the velocity from км/ч to м/с:

V = 7 км/ч * (1000 м / 1 км) * (1 ч / 3600 с)

Now we can calculate the distance traveled (S):

S = V * T

S = (7 км/ч * (1000 м / 1 км) * (1 ч / 3600 с)) * 8 ч

Calculating the value of S using the given values:

S = (7 * 1000 / 3600) * 8

S = 19.44 м

Now that we have the distance traveled (S), we can calculate the work (A) using the given force:

A = Fт * S

A = 10 кН * 19.44 м

Calculating the value of A:

A = 194.4 кН * м

Therefore, the work (A) is 194.4 кН * м.

Please note that the provided search results did not provide relevant information for this specific calculation.