The object slides down the slope of 15m that makes an angle of 30 degrees with the horizontal at a rate 2 m/s. If the height of the object when it slides down x m down the slope is h, sin 30 = `h/(15 - x)` .

h = (15...

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The object slides down the slope of 15m that makes an angle of 30 degrees with the horizontal at a rate 2 m/s. If the height of the object when it slides down x m down the slope is h, sin 30 = `h/(15 - x)` .

h = (15 - x)*sin 30

`(dh)/dt = -sin 30*((dx)/dt)`

As the object slides down at 2 m/s, the height decreases at 2*sin 30 = 1 m/s. This is constant.

**The height of the object decreases at a constant rate of 1 m/s.**