Question

Некоторый механизм , прикладывая горизонтальную силу F=4Н, перемещает тело массой m=2кг по горизонтальной поверхности с постоянной скоростью V=5м\с. Работа механизма за время t=2с будет равна ____Дж.

Answer 1

Calculation of Work Done by the Mechanism

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

Work = Force x Distance

In this case, the force applied by the mechanism is F = 4 N and the distance traveled by the body is not given. However, we know that the body is moving with a constant velocity of V = 5 m/s for a time period of t = 2 s.

To find the distance traveled, we can use the formula:

Distance = Velocity x Time

Substituting the given values, we have:

Distance = 5 m/s x 2 s = 10 m

Now we can calculate the work done:

Work = Force x Distance = 4 N x 10 m = 40 J

Therefore, the work done by the mechanism in 2 seconds will be 40 J.