Question: need help with calculus work below.... The height (in meters) of a projectile shot vertically upward from a point 3m above ground level with an

need help with calculus work below....

The height (in meters) of a projectile shot vertically upward from a point 3m above ground level with an initial velocity of 22.5m/s is h=3+22.5t4.9t2 after t seconds. (Round your answers to two decimal places.) (a) Find the velocity after 2.s and after 4.5. v(2)=v(4)=m/sm/s. (b) When does the projectile reach its maximum height? 5 (c) What is the maximum height? m (d) When does it hit the ground? s (e) With what velocity does it hit the ground? m/s

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