p02_001.pdf
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The document describes how to calculate the time it takes a ball to travel a horizontal distance given its constant horizontal velocity. It states the formula for horizontal displacement as x = vt, where x is the distance, t is the time, and v is the velocity. It then calculates the time taken for a ball traveling at 44.4 m/s to go 18.4 m by rearranging the formula to t = x/v, finding the time to be 0.414 seconds.
p02_001.pdf
- 1. 1. Assuming the horizontal velocity of the ball is constant, the horizontal displacement is x = vt where x is the horizontal distance traveled, t is the time, and v is the (horizontal) velocity. Converting v to meters per second, we have 160 km/h = 44.4 m/s. Thus t = x v = 18.4 m 44.4 m/s = 0.414 s . The velocity-unit conversion implemented above can be 鍖gured from basics (1000 m = 1 km, 3600 s = 1 h) or found in Appendix D.