Posted by Sarah on .
A 1100-kg cannon shoots a 31-kg shell at an angle of 25¡ above the horizontal and a speed of 520 m/s. What is the recoil velocity of the cannon? (Take the direction the cannon is firing to be the positive direction. Indicate the direction with the sign of your answer.)
PHY - C of M -
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This problem can be solved by assuming conservation of horizontal momemtum