A ladder 13m long leans against a wall. The foot of the ladder is pulled along the ground away from the wall, at the rate of 1.5m/s.How fast is the angle theta between the ladder and the ground is changing when the foot of the ladder is 12m away from the wall.

Question

anonymous · Answer

ok so answer Im getting is -0.3 radians per second and in book its given 0.3 radians per second...

cwrw238 · Answer

the angle will be getting smaller as the ladder moves away so the change should be negative. Or we could say that its is decreasing at the rate of 0.3 radians / sec.

cwrw238 · Answer

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