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If a Rock Is Thrown Upward on the Planet Mars 15 m/s15 \mathrm{~m} / \mathrm{s}

Question 54

Multiple Choice

If a rock is thrown upward on the planet Mars with a velocity of 15 m/s15 \mathrm{~m} / \mathrm{s} , its height in meters t seconds later is given by y=15t−1.86t2y=15 t-1.86 t^{2} . Find the average velocity over the time interval [1,4][1,4] .


A) 2.72.7
B) 6.76 .7
C) 7.77.7
D) 5.75.7
E) 4.74.7

Correct Answer:

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