Question

In: Physics

A quarter is dropped from rest from the fifth floor of a very tall building. The...

A quarter is dropped from rest from the fifth floor of a very tall
building. The speed of the quarter is v just before striking the ground.
From what floor would the quarter have to be dropped from rest for
the speed just before striking the ground to be approximately 2v?
Assume equally spaced floors and ignore all air resistance effects to
determine your answer.

please focus on showing the process to achieve the answer, thank you

Solutions

Expert Solution

in case of any difficulty please comment.

Thank You.


Related Solutions

The elevator starts from rest at the first floor of the building and comes to a...
The elevator starts from rest at the first floor of the building and comes to a complete stop at the 6th floor. It can accelerate at 6 ft/s2 and then decelerate at 2 ft/s2 Determine the shortest time is takes to reach the 6th floor, which is 60 ft above the ground. Draw the v?t and s?t graphs for the motion of the elevator.
A brick falls from rest from the roof of a tall building. Two seconds later a...
A brick falls from rest from the roof of a tall building. Two seconds later a ball is thrown vertically downward with a velocity of 75m/s how far below the roof does the ball hit the brick?
A 300-g ball is dropped at rest from a height 3.0 m above the horizontal floor....
A 300-g ball is dropped at rest from a height 3.0 m above the horizontal floor. The ball bounces off the floor with an initial speed of 2.0 m/s. If the ball is in contact with the floor for 150 ms, what is the magnitude of the average force on the ball associated with the impact
A 5.00 kg lead sphere is dropped from the top of a 60.0-m-tall building. Part A...
A 5.00 kg lead sphere is dropped from the top of a 60.0-m-tall building. Part A If all of its kinetic energy is converted into heat when it hits the sidewalk, how much will its temperature rise? (Ignore air resistance.) Express your answer in degrees celsius to three significant figures. ΔT ΔT =   ∘C   SubmitPrevious AnswersRequest Answer
A rock is dropped from the top of a tall tower. Half a second later another...
A rock is dropped from the top of a tall tower. Half a second later another rock, twice as massive as the first, is dropped. Ignoring air resistance, they strike the ground with the same kinetic energy they strike the ground more than half a second apart. the distance between the rocks increases while both are falling. the acceleration is greater for the more massive rock.
2) A ball is dropped from rest at the top of a high cliff. It takes...
2) A ball is dropped from rest at the top of a high cliff. It takes 10.00 seconds for the ball to reach the ground below. Find: a) the height of the cliff, b) the velocity of the ball hitting the ground below, c) the time it takes for the ball to fall half of the cliff's height, and d) the velocity at this halfway point. (Remember acceleration due to gravity is -9.800 m/s^2).
A ball, dropped onto a hard floor from a height of 2 meters, bounces to a...
A ball, dropped onto a hard floor from a height of 2 meters, bounces to a height of 1.8 meters, 90% of the initial height. Each subsequent bounce is 90% the height of the previous one. Find the total distance the ball travels up and down (i.e. after the first collision with the ground it has traveled 2 meters down and 1.8 meters up, giving a total distance of 3.8 meters).
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m....
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to reach a height of 0.600 m. What impulse was given to the ball by the floor? magnitude? direction? upward or downward
A 200-g ball is dropped from rest from a height of 1.4 m. It bounces and...
A 200-g ball is dropped from rest from a height of 1.4 m. It bounces and returns to the same position.   a) What is the change in momentum between the two points? b) If the ball is in contact with the floor for 10-3 s, what impulse does the floor impart to the ball?   In these cases remember vectors.
A soft tennis ball is dropped onto a hard floor from a height of 1.70 m...
A soft tennis ball is dropped onto a hard floor from a height of 1.70 m and rebounds to a height of 1.17 m. (Assume that the positive direction is upward.) (a) Calculate its velocity just before it strikes the floor. m/s (b) Calculate its velocity just after it leaves the floor on its way back up. m/s (c) Calculate its acceleration during contact with the floor if that contact lasts 3.50 ms. m/s2 (d) How much did the ball...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT