A 3-kg cannonball is fired straight up with an initial velocity of 48.5 m/s. Taking the...

   

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A 3-kg cannonball is fired straight up with an initial velocity of 48.5 m/s. Taking the initial position of the ball as the reference level (with zero height and zero potential energy), find the potential, kinetic and mechanical energies of the ball at different heights. Neglect the air resistance. Height, in m PE, in J KE, in J E, in J h = 0 h = 10 h3 = = 20 h4 = 30 How would you describe the energy transformation while the cannon ball is moving up? KE changes to PE If the same cannonball is fired with the same initial speed but at an angle above the horizontal, does it change the energies you submitted in the previous question? No A 3-kg cannonball is fired straight up with an initial velocity of 48.5 m/s. Taking the initial position of the ball as the reference level (with zero height and zero potential energy), find the potential, kinetic and mechanical energies of the ball at different heights. Neglect the air resistance. Height, in m PE, in J KE, in J E, in J h = 0 h = 10 h3 = = 20 h4 = 30 How would you describe the energy transformation while the cannon ball is moving up? KE changes to PE If the same cannonball is fired with the same initial speed but at an angle above the horizontal, does it change the energies you submitted in the previous question? No