A basketball rolls off a deck that is 3.2 m from the pavement. The basketball lands 0.75 m from the edge of the deck. How fast was the basketball rolling? Seema lists the given values in a chart and determines that the unknown value is vx.

given: value:

change in y 3.2m

ay -9.8 m/s2

change in x 0.75m

Which describes Seema’s error?

A. The y and x values are switched.

B. The unknown is , not vx.

C. The value for ay is not known.

D. The value of y should be –3.2 m.