Physics · 2019
JEE Main · 9 January 2019, Shift 1 · Q6
A block of mass m, lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant k. The other end of the…
A block of mass $\displaystyle m$, lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant k . The other end of the spring is fixed, as shown in the figure. The block is initally at rest in its equilibrium position. If now the block is pulled with a constant force F, the maximum speed of the block is :
Official answer
(3)
$\displaystyle \frac{\mathrm{F}}{\sqrt{\mathrm{mk}}}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.