A child pulls a 10 kg sled on level ground with a horizontal force of 40 N

PHYSICS · Single correct · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion

Problem

A child pulls a 10 kg sled on level ground with a horizontal force of 40 N. Friction opposes the motion with 25 N and air resistance with 5 N, both acting opposite to the pull. Which option correctly states the net horizontal force on the sled and whether the forces are balanced or unbalanced? (a) 15 N, unbalanced15\ \text{N},\ \text{unbalanced} (b) 10 N, unbalanced10\ \text{N},\ \text{unbalanced} (c) 70 N, unbalanced70\ \text{N},\ \text{unbalanced} (d) 10 N, balanced10\ \text{N},\ \text{balanced}

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