A stone is dropped into a river from a bridge 43.0 m above the water. Another...

A stone is dropped into a river from a bridge 43.0 m above the water. Another stone is thrown vertically down 1.44 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?

Expert Solution

genius_generous answered 11 months ago

A stone is dropped into a river from a bridge at a height h above the...

A stone is dropped into a river from a bridge at a height h above the water. Another stone is thrown vertically down at a time t after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone? Give your answer in terms of the given variables and g.

A stone is dropped from the upper observation deck of a tower, 100 m above the...

A stone is dropped from the upper observation deck of a tower, 100 m above the ground. (Assume g = 9.8 m/s2.) (a) Find the distance (in meters) of the stone above ground level at time t. h(t) = −4.9t2+100 (b) How long does it take the stone to reach the ground? (Round your answer to two decimal places.) (c) With what velocity does it strike the ground? (Round your answer to one decimal place.) (d) If...

A stone is dropped from a bridge. A second stone is thrown downwards 2.0 s later...

A stone is dropped from a bridge. A second stone is thrown downwards 2.0 s later with an initial speed of 25 m/s. They both reach the water below at the same instant. (a) How long did it take for the first stone to reach the water? (b) How high is the bridge? (c) What are the speeds of the two stones just before they hit the water?

If a bridge is above a river approximately 10 miles from the sea with a bridge...

If a bridge is above a river approximately 10 miles from the sea with a bridge deck of 170m What type of concrete is should be used? will it be sulphate resistant concrete or high performance concrete or any other? What will the Eurocode exposure class be ? will it be XS1 or XD1? or something else? Will it be EN206/BS8500 type of concrete?

On the moon the acceleration due to gravity is -1.6 m/s. a stone is dropped from...

On the moon the acceleration due to gravity is -1.6 m/s. a stone is dropped from a cliff on the moon and his the surface of the moon 40 seconds later. How do i find the position function of the stone?

A stone is dropped from the roof of a building, 1.10s after that a second stone...

A stone is dropped from the roof of a building, 1.10s after that a second stone is thrown straight down with an initial speed of 20.0 m/s & the two stones land at the same time How high is the building h=???m

A person standing on a bridge at a height of 115m above river drops a 0.250kg...

A person standing on a bridge at a height of 115m above river drops a 0.250kg rock. A). What is the rock's total mechanical energy at the time of release relative to the surface of the river? B). What are the rock's kinetic, potential, and total mechanical energies after it has fallen 75.0m? C). Just before the rock hits the water, What are its speed and total mechanical energy? D). Answer parts (A)-(C) for reference point (y=0) at the elevation...

Two stones are dropped from the edge of a 60-m cliff, the second stone 2.0 s...

Two stones are dropped from the edge of a 60-m cliff, the second stone 2.0 s after the first. How far below the top of the cliff is the second stone when the separation between the two stones is 40 m?

Two balls are placed, one above the other, and dropped from a height of 1.47 m....

Two balls are placed, one above the other, and dropped from a height of 1.47 m. The bottom ball has a mass which is 7 times the mass of the top ball. They are dropped from rest. When the balls strike the floor, they have a head on, elastic collision with one another. (Assume that the bottom ball strikes the floor, instantly reverses direction, and then collides with the top ball, which is still travelling downward.) How high will the...

Two balls are placed, one above the other, and dropped from a height of 1.4 m....

Two balls are placed, one above the other, and dropped from a height of 1.4 m. The bottom ball has a mass which is 10 times the mass of the top ball. They are dropped from rest. When the balls strike the floor, they have a head on, elastic collision with one another. (Assume that the bottom ball strikes the floor, instantly reverses direction, and then collides with the top ball, which is still travelling downward.) How high will the...

Question