This formula belongs to the chapter "Motion" in Class 9 Science. Use it after identifying the right variables, matching the chapter context, and writing the substitution clearly.
How to use it
Identify the quantity you need to find.
Check the related variables and units from the question.
Substitute values carefully into the formula.
Simplify step by step and write the final statement.
Worked cue
Car travels 120 km in 2h: v = 120/2 = 60 km/h
Rule note: Car travels 120 km in 2h: v = 120/2 = 60 km/h
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