A student pulls a sled across level snow at constant speed using a rope that makes a…
PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
A student pulls a 15kg sled across level snow at constant speed using a rope that makes a 25∘ angle above the horizontal. Compared to pulling with the rope perfectly horizontal, explain qualitatively why the required pulling force is smaller when the rope is angled upward.