Question

Prepare a chart of HCl and nahi reatin

Answer 1

Answer:

93.75 percent

Explanation:

Time of descent (td) = √2h/g

4=√2h/g

16=2h/10

h=80m

After 1sec body is at a height of 75m from ground

mg(h)/mg(H)*100

75/80*100=93.75 percent