science
posted by Saurav Kumar Ray
A stone is dropped from a height of 45 meter . what will be the distance travelled by it during the last second of its motion ? take acceleration as g=9.8m/s^2

Steve
How long does it take to hit?
h(t) = 454.9t^2
when is h=0?
t = 3.03 seconds
Now, what is h(2.03)? 
Akhil Sharma
If g =10 then Ans is 25 m distance travelled in last second ..Now how to solve it we use formula h=1/2 gt^2,Hn =g(n1/2)
Respond to this Question
Similar Questions

science
A stone is dropped into a river from a bridge 43.9 m above the water. Another stone is dropped vertically down 1s after the first is dropped. Both stones strike the water at the same time. a) What is the initial speed of the second … 
Physics: Non uniform motion
I have not done much physics before: I don't get how to do questions that deal with what happened in a particular SECOND So questions like:  A stone which is dropped from rest into a mine shaft falls a distance of 24.5 m DURING THE … 
physics
A stone is thrown vertically upwards with a velocity 30 ms −1 . If the acceleration due to gravity is 10 ms −2 , what is the distance travelled by the particle during the first second of its motion? 
PHYSICS
A stone is thrown in a vertically upward direction with a velocity of 5 m s 1 . If the acceleration of the stone during its motion is 10 m s2 in the downward direction, what will be the height attained by the stone and how much time … 
physics
A stone is thrown in vertical upward direction with velocity of 5 m/s. if the acceleration of the stone during it motion is 10 m/s2 in h downward direction, what will be the height attained by the stone and how much time will it take … 
physics
A stone is dropped from peak of the hill. It covers a distance of 30 metres in the last second of its motion. Find the height of the peak? 
physics
a stone is dropped from the peak of a hill . IT covers the distance of 30m in last second of its motion. Find the height of the peak? 
physics
A cage descends a mine shaft with an acceleration of 0.5 m/s2. After the cage has travelled 25 metres, a stone is dropped from the top of the shaft. Determine : 1. the time taken by the stone to hit the cage, and 2. distance travelled … 
physics
A stone is dropped from a height of 4.5m.What will be the distance travelled by it during the last second of its fall? 
science
A stone is dropped from a balloon going up with a uniform velocity of 5.0 m/s. If the balloon was 50 m high when the stone was dropped, find its height (in meters) when the stone hits the ground. Take g = 10 m/s2 (A) 50 (B) 58 (C) …