Question

1. Draw velocity versus time graph of freely falling body
2. motorcyclist drives from A to B with a uniform speed of 60 km h-1 andreturns back
with a speed of 40 km h-1. Find its average speed​

Answer 1

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1. A velocity versus time graph for a free-falling object is shown below. Observe that the line on the graph is a straight, diagonal line. ... This analysis of the slope on the graph is consistent with the motion of a free-falling object - an object moving with a constant acceleration of 9.8 m/s/s in the downward direction.
2. 24 km/h