The top of a ladder 6 metre long is resting against a vertical wall on a level pavement, when the ladder begins to slide outwards. At the moment when the foot of the ladder is 4 metres from the wall, it is sliding away from the wall at the rate of 0.5 m/sec. How fast is the top - sliding downwards at this instance?

Matching exercise

    
Match the items on the right to the items on the left.
Step - 1
Step - 2
Step - 3
Step - 4
Step - 5
Step - 6
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Capture5.PNG
Capture6.PNG