Aparticle moves along the x axis according to the equation x = 2.00 + 3.00 t – 1.00 t2, where x is in meters and t is in seconds. at t = 3.00 s, find (a) the position of the particle, (b) its velocity, and (c) its acceleration.

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s