300 An artillery gun is mounted on a railway car (as shown above). The total mass of the gun(without the shell) and car
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300 An artillery gun is mounted on a railway car (as shown above). The total mass of the gun(without the shell) and car
300 An artillery gun is mounted on a railway car (as shown above). The total mass of the gun(without the shell) and car is 15 000 kg. If the gun fires a 30 kg shell at an angle of 30° above the horizontal at 525 m/s, what is the recoil speed of the car?
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