10
lesson pretestMultiple Choice

Pretest

Question 10 • Physics I

An object moving north with an initial velocity of 14 meters per second accelerates 5 the fraction with numerator m and denominator s squared for 20 seconds. What is the final velocity of the object?

Answer
A
414 meters per second
B
39 meters per second
C
90 meters per second
D
114 meters per second

Explanation

Use the equation final velocity = initial velocity + (acceleration × time). The acceleration adds 5 × 20 = 100 meters per second to the initial 14 meters per second, giving 14 + 100 = 114 meters per second. The correct choice is 114 meters per second.

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