Answered

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A 102.1 kg cannon at rest contains a 9.8 kg cannon ball. When fired, the cannon ball leaves the cannon with a speed of 88.03 m/s. What is the recoil speed of the cannon?

Sagot :

Answer:

8.45m/s = recoil speed

Explanation:

Momentum = mass • velocity

9.8kg • 88.03m/s = 102.1kg • recoil speed

862.694kg•m/s = 102.1kg • recoil speed

divide both sides by 102.1kg

8.45m/s = recoil speed

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