A ball is thrown upward from the edge of a cliff with an initial speed of 6
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A ball is thrown upward from the edge of a cliff with an initial speed of 6 m/s.
(a) How fast is it moving 0.5 s later? In what direction?
(b) How fast is it moving 2 s later? In what direction? (Consider upward as + and downward as –; then v1 = +6 m/s and g = –9.8 m/s2.)
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