Q1. Far in space, where gravity is negligible, a 450 kg rocket travelling at 77 m/s fires its engines. The thrust force as a function of time with horizontal axis in 9 s increments. The mass lost by the rocket during these 25 s is negligible.

(a) What impulse does the engine impart to rocket?

(b) At what time does the rocket reach its maximum speed?

(c)What is the greatest speed?

Q2. A baseball is thrown straight up. The drag force is proportional to .In terms of, what is the y-component of ball's acceleration when its speed is half its terminal speed and it is moving up?

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How many complete revolutions does the wheel turn : A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15. |

What is the y-component of ball''s acceleration : A baseball is thrown straight up. The drag force is proportional to.In terms of, what is the y-component of ball's acceleration when its speed is half its terminal speed and it is moving up. |

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What sort of interference does the person sense : Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The person is 1.65 m from one speaker and 4.95 m from the other. What sort of interference does the person sense. |

Find out the vertical and horizontal components : A 40 g rifle bullet travelling 260 m/s buries itself in a 4.0 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement. |

Find out the distance travelled using the equation : When he reaches equator, the sphere is rotating at how many rpm. A car takes 9 s to go from v = 0 to v = 55 m/s at about constant acceleration. |

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