The position vector of a particle is r(t)=15t²î+(4-20t²)ĵ. What is the magnitude of acceleration at t=1?

Physics · Kinematics Part-1 (one dimension) · Acceleration and Avg acceleration

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The position vector of a particle is r(t)=15t²î+(4-20t²)ĵ. What is the magnitude of acceleration at t=1?

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