A uniform ladder long and weighing rests against a smooth vertical wall

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A uniform ladder

3.0\,\text{m}

long and weighing

180\,\text{N}

rests against a smooth vertical wall, making an angle of

60^{\circ}

with the horizontal ground. Determine the magnitude of the torque about the foot of the ladder due to the ladder’s weight. (a)

270\,\text{N m}

(b)

135\,\text{N m}

(c)

234\,\text{N m}

(d)

90\,\text{N m}