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`        A boy throwns a stone horizontally off a cliff. it hits the sea 2 seconds later,at a distance of 40 m from the foot of the cliff.    Calculate the                                                                             (a) height of the cliff                                                                   (b) intial speed of the stone                                                      © direction in which the stone is moving when it strikes the water.`
7 months ago

Saurabh Koranglekar
6577 Points
```							Dear studentHeight = 0.5 g t*t= 0.5*10*2*2= 20Initial speed = horizontal dist/ time= 40/ 2 = 20 m/s scalar quantityDirection of stone is in the direction of initial speed if no obstacle is presentRegards
```
7 months ago
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Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions