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Given: Mass of rocket (m) = 5000 kg, Exhaust speed (v) = 800 m/s, Acceleration of rocket (a) = 20 m/s², Gravitational acceleration (g) = 10 m/s². Calculate the thrust.

1. 15000 N
2. 50000 N
3. 187.5 kg/s
4. 8000 N

Correct answer: 50000 N

Solution

The thrust (F) is calculated using the equation F = m(a + g). Substituting the given values: F = 5000 × (20 + 10) = 5000 × 30 = 50000 N.

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