a stone dropped from the roof of a building reaches the ground in 15 secs.calculate its velocity before touching the ground
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v=u+at
put the values
since it's a freefall therefore acceleration =9.8m/s∧2≈10
v=0+10x15
v=150m/s
put the values
since it's a freefall therefore acceleration =9.8m/s∧2≈10
v=0+10x15
v=150m/s
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