Physics, 27.01.2020 19:31 hsernaykaw42

Aball is tied to a 1.3 m string and whirled in a circular motion with a force of 220 n. if its speed is 6 m/s, (a) what is it centripetal acceleration? (b) what is the mass of the ball?

Answers: 2

Show answers

Answers

Answer from: rvkanneh1713

The centripetal acceleration is 27.692 kg m / s^2.

The mass of the ball is 7.94 kg.

Explanation:

The curved path of an object experience a force known as centripetal force. Its direction is always pointing to the motion of the body towards the center of curvature of the path.

centripetal force Fc = (mass * square of velocity) / radius

where m represents mass in kg

v represents velocity

r represents radius in a meter.

The acceleration experienced in uniform circular motion is called as centripetal acceleration.It always points toward the center of rotation and is perpendicular to the linear velocity. centripetal acceleration = v^2 / r

= (6 * 6) / 1.3

= 27.692 kg m / s^2.

The mass of the ball is found by using the centripetal force formula,

centripetal force Fc = m v^2 / r

m = (F * r) / v^2

= (220 * 1.3) / 36

mass of the ball m = 7.94 kg.

Answer from: Quest

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4

Answer from: Quest

The correct answer is c. hope this

Another question on Physics

Physics, 21.06.2019 21:00

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

Answers: 1

Answer

Physics, 22.06.2019 08:30

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

Answers: 3

Answer

Physics, 22.06.2019 09:30

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?

Answers: 2

Answer

Physics, 22.06.2019 10:10

How will the system respond to a temperature increase?

Answers: 1

Answer

You know the right answer?

Aball is tied to a 1.3 m string and whirled in a circular motion with a force of 220 n. if its speed...

Questions