Physics · 2021
JEE Main · 3 August 2021, Shift 2 · Q20
A block of mass 4.0 kg is pulled up on a smooth incline of angle 30^° with the horizontal. If the block moves with an acceleration of 1.0 m / s^2,…
A block of mass $\displaystyle 4.0$ kg is pulled up on a smooth incline of angle $\displaystyle 30^{\circ}$ with the horizontal. If the block moves with an acceleration of $\displaystyle 1.0 \mathrm{~m} / \mathrm{s}^2$, the power delivered by the pulling force at a time $\displaystyle 3.0$ s after the motion starts is
Official answer
(1)
70.$\displaystyle 8$ W
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.