A pendulum bob of mass \( 50 \mathrm{gm} \) is hanging from the ceiling of a lift by a light, in....
0A pendulum bob of mass \( 50 \mathrm{gm} \) is hanging from the ceiling of a lift by a light, inextensible string.
Choose the correct options. \( \left(g=9.8 \mathrm{~m} / \mathrm{s}^{2}\right) \)
\( \mathrm{P} \)
(1) When the lift has an acceleration \( \left(1.2 \mathrm{~m} / \mathrm{s}^{2}\right) \hat{j} \), the tension in the string is \( 0.43 \mathrm{~N} \)
(2) When the lift has a constant velocity \( \left(1.2 \mathrm{~m} / \mathrm{s}^{1}\right) \hat{j} \), then tension in the string is \( 0.43 \mathrm{~N} \)
(3) When the lift has an acceleration \( -\left(1.2 \mathrm{~m} / \mathrm{s}^{2}\right) \hat{j} \), the tension in the string is \( 0.43 \mathrm{~N} \)
(4) When the lift has a constant velocity \( -\left(1.2 \mathrm{~m} / \mathrm{s}^{1}\right) \) \( \hat{j} \), the tension in the string is \( 0.55 \mathrm{~N} \)
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