Q1. A ball in flight is recorded and analyzed using digital video analysis software. The analysis produced the result that the ball had a horizontal speed of 0.60 m/s. In the analysis, a stick was used as a calibration standard, and it was believed that the stick was 1.0 m long. Though, after the analysis was done, it was exposed that the stick was actually 0.90 m long.

Was the horizontal speed actually faster or slower than analysis result?

What should the result have been for the horizontal speed (Vx)?

Q2. Soccer player 1 is 8.0 m from the goal, as the drawing shows. If she kicks the ball directly into the net, the ball has a displacement labelled. If, on other hand, she first kicks it to player 2, who then kicks it into the net, the ball undergoes two successive displacements, y and x. What are the magnitude and direction of x and y?

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What are the magnitude and direction of x and y : If, on other hand, she first kicks it to player 2, who then kicks it into the net, the ball undergoes two successive displacements, y and x. What are the magnitude and direction of x and y. |

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