PULLING / PUSHING A BODY
Laws of Motion

270347 A weightW rests on a rough horizontal plane. If the angle of friction is θ, the least force that can move the body along the plane will be

1 Wcosθ
2 Wtanθ
3 Wcotθ
4 Wsinθ
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Laws of Motion

270347 A weightW rests on a rough horizontal plane. If the angle of friction is θ, the least force that can move the body along the plane will be

1 Wcosθ
2 Wtanθ
3 Wcotθ
4 Wsinθ
Laws of Motion

270348 A ball of mass0.5 kg is attached to the end of a string having length 0.5 m. The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N. The maximum possible value of angular velocity of ball in (rad/s)

1 9
2 18
3 27
4 36