Hocket Car Rocket Car My Answers Give Up A rocket car is developed to break the

Question

Hocket Car Rocket Car My Answers Give Up A rocket car is developed to break the land speed record along a salt fat in Utah. However, the safety of the driver must be considered, so the acceleration of the car must not exceed 5g for five Smes the acceleration of gravity) during the test Correct The driver of this car is experiencing just over 3g, ar theee times the acceleraion one namally feels due to gravity, by the end of the trip. This is the maximum acceleration achieved during the hip, and I sM very safely te driver, who can easly withstand over 5g withhing Using the lalest materials and technology, the total mass of te car (including the fuel) is 6000 klograms, and the mass of the fuel is one-thied of the total mass of the car fie, 2000 killograms The car is moved to the starting ine (and let at rest), at which time the rocket is ignited. The rocket bel is exposed at a contat speed of 900 meters per second relative to the car, and is burned at a Part C Find the alvekety T-ofthe car j st as he rocket s about to use upitt-apply Express y answer to two signficant ·Hints constant rate until used up, which takes only 15 seconds. ignore all effects of friction in this problem Incorrect; Try Again; 5 attempts remaining 8 0 2 6

Explanation / Answer

According to the question provided we need to find the value of V(final).

V = V(O) * ln ( 30/20 ) = 900 m/s * ln (1.5) = 365 m/s or 360 m/s ===================ANSWER)

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