Question
A 520kg rocket sled at rest is propelled along the ice by an engine developing a constant thrust of 12 000 N over a distance of 40 m.Assuming all of the work goes into motion, calculate its velocity after 40 m
- 7.5 m /s
- 6.98 m/s
- 43 m/s
- 48 m/s
The correct answer is: 43 m/s
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