Test Academy | A particle has initial (t = 0) velocity μ → = 5 i ^ and is at origin at this instant. Its acceleration is given by ( 3 i ^ + 4 j ^ ) . When particle’s x co-ordinate is 16 units, then its speed is 13 units, √161 units, 12 units, √185 units

Question

A particle has initial (t = 0) velocity $\vec{μ} = 5 \hat{i}$ and is at origin at this instant. Its acceleration is given by $(3 \hat{i} + 4 \hat{j}) .$ When particle’s x co-ordinate is 16 units, then its speed is

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13 units
√161 units
12 units
√185 units

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