The X and Y Positions (In Meters)of a Particle Are

question 1

Multiple Choice

The x and y positions (in meters) of a particle are given by: x(t) = 253 t,and y(t) = -12.0 t² + 155 t + 100.The magnitude of the particle's acceleration at t = 12.9 s is

• A)0 m/s².
• B)-12.0 m/s².
• C)12.0 m/s².
• D)-24.0 m/s².
• E)24.0 m/s².

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