A 50 kg cannon ball is shot horizontally from a cannon at a speed of 80 ms. At this speed what will its kinetic energy be?

The kinetic energy of the cannon ball can be calculated using the formula KE = 1/2 * m * v^2, where m is the mass of the cannon ball (50 kg) and v is its velocity (80 m/s). Plugging in these values, you would find that the kinetic energy of the cannon ball is 160,000 Joules.