Question

calculate the net force acting on a ball that is being hit with a hockey stick with 7 n of force and it feels a frictional force of 2 n. the net force is

Explanation:

Step1: Determine the direction of forces

Assume the downward - acting force \(F_A = 7N\) (positive direction) and the upward - acting frictional force \(F_f=2N\) (negative direction).

Step2: Calculate the net force

The formula for net force \(F_{net}\) is \(F_{net}=F_A + F_f\). Substitute \(F_A = 7N\) and \(F_f=- 2N\) into the formula: \(F_{net}=7+( - 2)\).
Using the rule of adding integers \(a+( - b)=a - b\), we get \(F_{net}=7 - 2\).

Answer:

\(+5N\)