At one instant of time a rocket is traveling in outer space at 2500 m/s and is exhausting fuel at a rate of 100 kg/s.If the speed of the fuel as it leaves the rocket is 1500 m/s, relative to the rocket, the thrust is: A)0 N B)1.0 *10⁵ N C)1.5 * 10⁵ N D)2.9 * 10⁵ N E)2.5* 10⁵ N

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Quizplus · Accepted Answer

The thrust of a rocket can be calculated using the formula: Thrust = mass flow rate * exhaust velocity. Given the mass flow rate is 100 kg/s and the exhaust velocity (relative to the rocket) is 1500 m/s, the thrust is 100 kg/s * 1500 m/s = 150,000 N, which corresponds to choice C, 1.5 x 10^5 N.

At One Instant of Time a Rocket Is Traveling in Outer