Question

На тело действует сила тяги 100Н и сила трения 20Н под действием этиз сил оно перемещается на 10 см. Найдите работу.

Answer 1

A=FS=(100-20)*0.1м=80*0.1=8 Дж

Answer 2

Calculation of Work

To calculate the work done, we need to find the force applied and the displacement.

Given: - Force of gravity (weight) = 100 N - Frictional force = 20 N - Displacement = 10 cm = 0.1 m

To find the net force, we subtract the frictional force from the applied force: Net force = Applied force - Frictional force

Using the given values: Net force = 100 N - 20 N = 80 N

The work done can be calculated using the formula: Work = Net force * Displacement

Substituting the values: Work = 80 N * 0.1 m = 8 Joules

Therefore, the work done is 8 Joules.