On hole nine, Richard hit a golf ball. The golf ball weighs 0.20 kg. The acceleration of the ball was 41 m/s2. what was the force of Richard's swing?

Well first of all, nothing "weighs" 0.2 kg.

The "kilogram" (kg) is a unit of mass, not force.

Force = (mass) x (acceleration)

During the short time the ball was in contact with the clubface,

the force on the ball averaged

(0.2 kg) x (41 m/s²) = 8.2 newtons (about 1.84 pounds).

After the ball left the clubface, it stopped accelerating.