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HW02-problems

HW02-problems - markowitz(am45362 – HW02 – distler...

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Unformatted text preview: markowitz (am45362) – HW02 – distler – (56295) 1 This print-out should have 24 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 4) 10.0 points The position versus time for a certain object moving along the x-axis is shown. The ob- ject’s initial position is- 3 m.- 10- 8- 6- 4- 2 2 4 6 8 1 2 3 4 5 6 7 8 9 b b b b b b time (s) position(m) Find the instantaneous velocity at 1 s. Answer in units of m / s 002 (part 2 of 4) 10.0 points Find the instantaneous velocity at 7 s. Answer in units of m / s 003 (part 3 of 4) 10.0 points Find the average velocity between 0 s and 3 s. Answer in units of m / s 004 (part 4 of 4) 10.0 points Find the average velocity over the whole time shown. Answer in units of m / s 005 10.0 points A body moving with uniform acceleration has a velocity of 9 . 91 cm / s when its x coordinate is 1 . 99 cm. If its x coordinate 2 . 03 s later is- 3 . 57 cm, what is the x-component of its acceleration? Answer in units of cm / s 2 006 (part 1 of 2) 10.0 points A ball is thrown upward. After reaching a maximum height, it continues falling back to- ward Earth. On the way down, the ball is caught at the same height at which it was thrown upward. b b b b b b b b b bb b b b b b b b b b v h max If the time ( up and down ) the ball re- mains in the air is 1 . 84 s, find its speed when it caught. The acceleration of grav- ity is 9 . 8 m / s 2 . Neglect air resistance....
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HW02-problems - markowitz(am45362 – HW02 – distler...

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