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Yes, the ball undergoes straight-line motion along the inclined track. Its motion can be represented by a horizontal line. Since the ball moves in one direction without reversing, total distance and displacement magnitude are equal at A, B, C and ...
Fuel used by a vehicle depends mainly on the total distance travelled, not displacement. Fuel is consumed while the vehicle moves along its actual path. A longer distance generally requires more fuel.
Class 9 Science Exploration Notes for First Term Exam (2026-27). These notes provide chapter-wise concepts, important definitions, formulas, diagrams and exam-focused questions to help students revise effectively and prepare confidently for their first-term examination.
The student travels 4 × 3 = 12 m upward and then 2 × 3 = 6 m downward. Therefore, total distance = 18 m and displacement from the ground floor = 6 m upward.
He travelled 250 m four times: home to shop, shop to home, home to shop and shop to home. Therefore, total distance = 1000 m. Since he returned home, displacement = 0 m.
