A block of mass \( m=10 \mathrm{~kg} \) is to be pulled on a horizontal rough surface with the m...

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A block of mass \( m=10 \mathrm{~kg} \) is to be pulled on a horizontal rough surface with the minimum force.
\[
\mu=0.75
\]
(i) The block should be pulled at an angle=
(ii) The magnitude of the force \( F \) is equal to
(a) \( 45^{\circ}, 30 \mathrm{~N} \)
(b) \( 37^{\circ}, 30 \mathrm{~N} \)
(c) \( 37^{\circ}, 60 \mathrm{~N} \)
(d) \( 53^{\circ}, 30 \mathrm{~N} \)
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