Three pulls are made on the same cart over a displacement of along a straight road
PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy
Problem
Three pulls are made on the same cart over a displacement of 5m along a straight road.
Case A: F=20N acting along the direction of motion.
Case B: F=12N making an angle of 60∘ with the direction of motion.
Case C: F=30N acting exactly opposite to the direction of motion.
Answer the questions below.
(a) Calculate the work done on the cart in each case.
(b) Arrange the three cases in order of increasing magnitude of work done.
(c) Identify the case in which the work done is maximum negative and state its value.