Textbook Question
The takeoff speed for an Airbus A320 jetliner is 80 m/s. Velocity data measured during takeoff are as shown. Is the jetliner's acceleration constant during takeoff? Explain.
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2. 1D Motion / Kinematics
Intro to Acceleration
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When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.4 m/s in 0.12 s. What is the acceleration of the pike during this strike?
A
36.67 m/s²
B
18.33 m/s²
C
52.8 m/s²
D
44.0 m/s²
Verified step by step guidance1
Identify the known values from the problem: initial velocity (v₀) is 0 m/s (since the pike starts from rest), final velocity (v) is 4.4 m/s, and the time (t) taken to reach this speed is 0.12 s.
Recall the formula for acceleration (a) when you know the initial velocity, final velocity, and time: a = (v - v₀) / t.
Substitute the known values into the formula: a = (4.4 m/s - 0 m/s) / 0.12 s.
Simplify the expression by performing the subtraction in the numerator: a = 4.4 m/s / 0.12 s.
Complete the division to find the acceleration, ensuring the units are consistent, resulting in the acceleration value in m/s².
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