physcis ! HELP !!!!
posted by kelly .
which of collowing situations describe a particle that might have a nonzero velocity? canbe more than one
A) a particle that has a constant position as a function of time
B) a particle that has its position changing as a fnction of time
c)when you graph the particle's accerleration, the slope of the ine is zero
d)a particle that is falling near the surface of the earth

B, C, D
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