Physics, 20.02.2020 08:03 minecrafter3882

A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from the roof a time of 1.09 s later. You may ignore air resistance.

A-If the height of the building is 20.0 m , what must the initial speed be of the first ball if both are to hit the ground at the same time?

B-Consider the same situation, but now let the initial speed V0 of the first ball be given and treat the height h of the building as an unknown. What must the height of the building be for both balls to reach the ground at the same time for V0= 8.75 m/s.

C-If V0 is greater than some value Vmax , a value of h does not exist that allows both balls to hit the ground at the same time. Solve for Vmax .

D-If V0 is less than some value Vmin , a value of h does not exist that allows both balls to hit the ground at the same time. Solve for Vmin .

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 00:00

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

Answers: 2

Answer

Physics, 22.06.2019 10:40

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Answers: 1

Answer

Physics, 22.06.2019 16:30

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Answers: 1

Answer

Physics, 22.06.2019 18:00

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain

Answers: 1

Answer

You know the right answer?

A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from...