A 2.5 kg ball is launched into projectile motion by a slanted spring. The spring is compressed  by 28cm, has a spring constant of 1200 N/m, and is slanted at a 42˚ angle. The ball leaves  the spring at ground level.    a) Determine the velocity at the moment the ball leaves the spring.   b) Determine the maximum height above the ground reached by the ball.   c) Determine how far horizontally the ball travels before coming back down to the ground.

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