Physics Notes 09-10-07

Physics Notes 09-10-07 - Physics Notes 9-10-07 The...

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Physics Notes 9-10-07 The Professor and Otto: Two Dimensional Motion G.R.A.S.P. G-Given-Write down all the givens R-Required-Write down the reequired valuables A-Analysis-analyze the problem in terms of the appropriate concepts/equations/diagrams S-solution-solve the problem with the insight fromnyour analysis P-paraphrase Use algebra. For constant velocity-----Delta x = v sub x delta t delta v sub x = 0 a sub x =0 For constant acceleration-----delta x = v sub x *t + .5((a sub x)(delta t)^2) delta v sub x = a sub x delta t a sub x = a sub ix Givens- 1- Length of race- 50 m 2- Tortoise moves at constant velocity of .2 m/s 3- Hare moves with constant acceleration of .3 m/s^2 after 3 minutes of napping Required: since the problem asks whether or not the hare will “catch up” with the tortoise despite the hare’s nap, we want to find the position. The position of both. Analysis-
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X sub t = (3 minutes)(60 seconds/min) + .2 m/s delta t X sub t is the final position of the tortoise for the given interval. Required unknown variables= x sub h, x sub t, and delta t
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Physics Notes 09-10-07 - Physics Notes 9-10-07 The...

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