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The position of a softball tossed vertically upward is described by the equation y = c1 t c2 t2, where y is in meters, t in seconds, c1 = 2.88 m/s,...

The position of a softball tossed vertically
upward is described by the equation
y = c1 t − c2 t2,
where y is in meters, t in seconds, c1 =
2.88 m/s, and c2 = 6.67 m/s2.
Find the ball’s initial speed v0 at t0 = 0 s.
Answer in units of m/s.

(part 2 of 3)
Find its velocity at t = 1.71 s. Answer in
units of m/s.

(part 3 of 3)
Find its acceleration at t = 1.71 s. Answer in
units of m/s2.

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