The final velocity, cap v , of an object under constant acceleration can be found using the formula cap v squared is equal to v squared plus 2 A s , where v is the initial velocity (in meters per second), A is acceleration (in meters per second), and s is the distance (in meters). What is the formula solved for A ?
Answer
A
the fraction with numerator cap v squared plus v squared and denominator 2 s is equal to A
B
the fraction with numerator cap v squared minus v squared and denominator 2 s is equal to A
C
cap v squared minus v squared minus 2 s is equal to A
D
cap v squared minus v squared plus 2 s is equal to A
Explanation
Start with cap v squared = v squared + 2As. Subtract v squared from both sides, then divide by 2s to get A = (cap v squared − v squared)/(2s), which is choice B.
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