Multiple Choice
An object has a position given by = [2.0 m + (5.00 m/s) t]î + [3.0 m - (2.00 m/s2) t2]ĵ, where quantities are in SI units. What is the speed of the object at time t = 2.00 s?
A) 6.40 m/s
B) 9.43 m/s
C) 7.00 m/s
D) 7.65 m/s
E) 13.0 m/s
Correct Answer:

Verified
Correct Answer:
Verified
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