Class 9, Ncert Cbse Science (Physics) Chapter - 8, Motion Multiple Choice Questions (MCQ) Q.1: m/s2 is the SI unit of - (a) distance (b) displacement (c) velocity (d) acceleration. Q.2: A car goes from a town A to another town B with a speed of 40 km/h and returns back to the town A with a speed of 60 km/h. The average speed of the car during the complete journey is - (a) 48 km/
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