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The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off. What is the impul...Asked by help
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off.
What is the impulse exerted on the rocket?
What is the velocity of the rocket at the end of the 1.50 minute period?
What is the impulse exerted on the rocket?
What is the velocity of the rocket at the end of the 1.50 minute period?
Answers
Answered by
bobpursley
impulsr=force*time=2E5*90 N-seconds
changevelocity=impulse/massrocket
changevelocity=impulse/massrocket
Answered by
help
I don't understand where the 90 comes from
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