Question: how to find the magnitude of tension in a string?
Answer: Normal force (N) = 10 kg × 9.8 (acceleration from gravity) = 98 N. Force from kinetic friction (Fr) = 0.5 × 98 N = 49 Newtons. Force from acceleration (Fa) = 10 kg × 1 m/s2 = 10 Newtons. Total tension = Fr + Fa = 49 + 10 = 59 Newtons.