a 2.34-kg cart on a long, level, low friction track is heading for a small electric...

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Physics

a 2.34-kg cart on a long, level, low friction track is headingfor a small electric fan at 0.21 m/s. The fan which was initiallyoff, is turned on. As the fan speeds up, the magnitude of the forceit exerts on the cart is given by at^2, where a=0.0200 N/s^2

A. What is the speed of the cart 3.5 s after the fan is turnedon? (first i got 0.4958 m/s but was wrong)

B. After how many seconds is the cart's velocity zero

Answer & Explanation Solved by verified expert
4.4 Ratings (912 Votes)
A The speed of the cart after the fan is turned on which isgiven as The rate of    See Answer
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