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If we model the launch as an explosion, calculate v' (ve) of the catapult immediately after a launch on horizontal ground. Assume the projectile

If we model the launch as an explosion, calculate v' (ve) of the catapult immediately after a launch on horizontal ground. Assume the projectile leaves your catapult at 30 above the horizontal, and the surface of the desk is frictionless. (4) Mass of Projectile: Mass of Catapult:

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