Final answer:
To overcome the friction of a 10 N weight with a coefficient of friction of 0.2, a force of 2 Newtons is required.
Step-by-step explanation:
The force needed to overcome the friction of a 10 N weight when the coefficient of friction is 0.2 can be found by using the equation f = μ N, where f is the force of friction, μ is the coefficient of friction, and N is the normal force which is equal to the weight of the object when on a horizontal surface. In this case, the normal force N is equal to the weight, which is 10 N.
To calculate the force required:
- First, substitute the given values into the friction equation: f = 0.2 × 10 N
- Then, calculate the frictional force: f = 2 N
Therefore, a force of 2 Newtons is needed to overcome the frictional force.