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The 150- kg lunar lander is descending onto the moon's surface with a velocity of 4.1 m/s when its retro-engine is fired. If the engine produces a thrust T for 5.4 s which varies with the time as shown and then cuts off, calculate the velocity of the lander when t = 6.1 s assuming that it has not yet landed. Gravitational acceleration at the moon's surface is 1.62 m/s2. The velocity is positive if moving downward, negative if up. Answe: v = m/s

The 150- kg lunar lander is descending onto the moon's surface with a velocity of 4.1 m/s when its retro-engine is fired. If the engine produces a thrust T for 5.4 s which varies with the time as shown and then cuts off, calculate the velocity of the lander when t = 6.1 s assuming that it has not yet landed. Gravitational acceleration at the moon's surface is 1.62 m/s2. The velocity is positive if moving downward, negative if up. Answe: v = m/s

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The 150- kg lunar lander is descending onto the moon's surface with a velocity of 4.1 m / s when its retro-engine is fired. If the engine produces a thrust T for 5.4 s which varies with the time as shown and then cuts off, calculate the velocity of the lander when t = 6.1 s assuming that it has not yet landed. Gravitational acceleration at the moon's surface is 1.62 m / s 2 . The velocity is positive if moving downward, negative if up.
Answe: v = ◻ m / s

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