Answer:
7.48 N
Step-by-step explanation:
Friction force equals the normal force times the coefficient of friction.
F = Nμ
For a block on level ground, the normal force equals the weight.
N = mg
Therefore:
F = mgμ
F = (3.05 kg) (9.81 m/s²) (0.250)
F = 7.48 N