A cannonball is shot (from ground level) with an initial horizontal velocity of

Question

A cannonball is shot (from ground level) with an initial horizontal velocity of 39.0 m/s and an initial vertical velocity of 27.0 m/s.
1) What is the initial speed of the cannonball? my answer is (47.45)

2) What is the initial angle ? of the cannonball with respect to the ground? my answer is (34.69)

3) What is the maximum height the cannonball goes above the ground? my answer is (37.21)

4) How far from where it was shot will the cannonball land?

5) What is the speed of the cannonball 3.5 seconds after it was shot?

6) How high above the ground is the cannonball 3.5 seconds after it is shot? my answer is (34.48)

Explanation / Answer

1)initial speed = 45.2 m/s 2)initial angle = 27.7 m/s 3)max height = v^2/2g = 22.5 m 4) d = 171.4 m 5) speed = 41.1 m 6) h = 18.1 m

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