Solve the all parts of given problem:

Problem: A projectile is fired with an initial speed of 29 m/s at an angle of 54° above the horizontal. The object hits the ground 6.8 s later. (Neglect air resistance.)

Part A: How much higher or lower is the launch point relative to the point where the projectile hits the ground? (If the point where the projectile hits the ground is lower, enter a negative number.)

(in meters)

Part B: To what maximum height above the launch point does the projectile rise?

(in meters)

Part C: What are the magnitude and direction of the projectile's velocity at the instant it hits the ground?

magnitude in m/s

direction in ° (counterclockwise from the +x-axis)

Please show all work to solve the above problem.