Question

a stone is dropped from the top of cliff.it hits ground after 4.2 seconds.how high is the cliff?

Answer 1

Answer:

We know that starting from rest any body will take time T in falling height H given by T=  

2

 

2H/g

​  

 

put T=4.2s and g=9.8m/s  

2

 we get H=86.436meter

Explanation:

Answer 2

Answer:

Hey mates

here is your answer

We know that starting from rest any body will take time T in falling height H given by T=  

2

 

2H/g

 

 

put T=4.2s and g=9.8m/s  

2

 we get H=86.436meter

I hope this answer help you

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