Questions about velocity and acceleration?

Mia shoots an arrow upward at an initial velocity of 11 m/s from a platform that is 2 m high. the height, h, in meters of the arrow after t seconds is modelled by the equation h(t) = -4.9t^2 + 11t + 2 where t > o a) determine the velocity and acceleration of the arrow at 3 seconds b) when does the arrow hit... show more Mia shoots an arrow upward at an initial velocity of 11 m/s from a platform that is 2 m high. the height, h, in meters of the arrow after t seconds is modelled by the equation h(t) = -4.9t^2 + 11t + 2 where t > o

a) determine the velocity and acceleration of the arrow at 3 seconds
b) when does the arrow hit the ground? with what velocity does it hit the ground?

10 points for the best answer
5 answers 5