Question

A 1.0 ∙ 10^3 kg cannon with a 3.0-m long barrel is positioned atop a 75 meter tall cliff face overlooking a valley. The cannon is set to fire a 12 kg projectile through the barrel at a 30 degree angle to the horizontal. If the cannon does 3500 J of work on the projectile, then what is the final velocity of the projectile, just before it strikes the ground? (only use Kinematic Motion equations and Newton’s Laws to solve) show all your work

Answer 1