A 1000kg rocket ship, travelling at 100m/s is acted upon by an average force of 20kN applied in the direction of its motion for 8s. What is the change in velocity of the rocket?
Correct answer: A. 160m/s
- A. 160m/s
- B. 260m/s
- C. 160,000m/s
- D. 260,000m/s
Explanation
The correct answer is Option A. The change in velocity of the rocket can be calculated using the formula: Change in Velocity = (Force / Mass) * Time. Substituting the given values: (20,000N / 1000kg) * 8s = 160m/s. This represents the change in velocity experienced by the rocket due to the applied force. Options B, C, and D are incorrect because they either represent the final velocity of the rocket or provide values that are not feasible for the given scenario.
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