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ROBOT

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ROBOT

by Aman verma » Wed Mar 24, 2010 11:23 am
Q: A Robot began moving from point A in a straight line at 6 p.m with an initial speed of 3 m/s. One second later , the speed of the Robot became equal to 4 m/s. Find the acceleration of the Robot at the end of the 2nd second if its speed changes by the law s(t) = a(t)^2 + 2t + b.

a) 1 m/s^2

b) -2 m/s^2

c) 0 m/s^2

d) -3 m/s^2

e) 4 m/s^2
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Source: — Problem Solving |

by STEVEN SPIELBERG » Wed Mar 24, 2010 11:31 am
What's the OA ?
I want to win an OSCAR on the GMAT !!!
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by neoreaves » Wed Mar 24, 2010 11:41 am
the speed change in 1 second was 1 m/s so acceleration is 1m/s^2 .....

But i dont think this is a pure gmat question ....
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by Aman verma » Thu Mar 25, 2010 2:17 am
OA [spoiler]b) - 2 m/s^2[/spoiler]
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