PHYSICS HIGH SCHOOL

A 250 gram ball at the end of a string is revolving uniformly in a circle of radius 0.75 meters.The ball makes 2.0 revolutions per second. What is the centripetal acceleration?

Answers

Answer 1

Answer:

The centripetal acceleration of the ball would be 88.44 m/ $s^2$ .

Centripetal acceleration

The centripetal acceleration (ac) of an object moving in a circle at a constant speed is given by the formula:

ac = (v^2) / r

where v is the speed of the object and r is the radius of the circle.

In this case, the ball is revolving uniformly in a circle of radius 0.75 meters, and it makes 2.0 revolutions per second. To find the speed of the ball (v), we need to convert the number of revolutions per second to the angular velocity (ω) in radians per second:

ω = 2π x (number of revolutions per second)

ω = 2π x 2.0 = 4π radians per second

The speed of the ball (v) is then given by:

v = ω x r
v = (4π rad/s) x 0.75 m = 3π m/s

Now we can calculate the centripetal acceleration (ac) of the ball:

ac = (v^2) / r
ac = [(3π m/s)^2] / 0.75 m
ac = 9π^2 m/s^2 ≈ 88.44 m/s^2

Therefore, the centripetal acceleration of the ball is approximately 88.44 m/s^2.

More on centripetal acceleration can be found here: brainly.com/question/1052267

#SPJ1

Related Questions

A police car is traveling at a velocity of 18.0 m/s due north, when a car zooms by at a constant velocity of 42.0 m/s due north. After a reaction time of 0.800 s the policeman begins to pursue the speeder with an acceleration of 5.00 m/s2. Including the reaction time, how long does it take for the police car to catch up with the speeder?
A load of 600 N is lifted using a first-class lever applying an effort of 350 N. If the distance between the fulcrum and the effort is 60 cm, calculate load distance
The distance from Earth to the Sun is 1.0 _____. light year parsec astronomical unit furlong
Ball A has mass 5.0 kg and is moving at -3.2 m/s when it strikes stationary ball B, which has mass 3.9 kg, in a head-on collision. If the collision is completely inelastic, what is the common velocity of balls A and B?
The direction of motion for a series of wave fronts is represented with a(n) _____.wavelengthraycresttrough

What is the most current NASA mission on Mars?

Answers

The most recent NASA mission on Mars is Mars Science Laboratory. Its key component was Curiosity rover.
Rover has celebrated his first landing anniversary yesterday (Martian year, that is 687 Earth days).
Curiosity managed to find traces of water on Mars, so it's possible that there used to be some life on Mars.
Since landing Curiosity moved only about 5 miles form the landing site (it suffered wheel damage).

The mars rover bot i.e curiosity has been send latestly by NASA on mars. You can also see some pics on net if are doing some project or something.

Look at Figure 2. Describe the motion of the object in Graph ACompare Graphs A and B in Figure 2. At a time of 2 seconds, which graph shows a greater velocity? How do you know?

Answers

The graphs show distance versus time data. For graph A, we can say that velocity is constant until it reaches time of 8 seconds. And a constant velocity is again exhibited starting at time 12 seconds. For graph B, the velocity is changing as time pass by since the slope is changing. At time of 2 seconds, graph A has greater velocity since it has a steeper slope.

An apple weighs at 1N. the net force on the apple when it is in free fall is?a. 0N
b. 0.1N
c. 1N
d. 10N
e. none of the above

Answers

The weight is the magnitude of the gravitational force between
the Earth and the apple. There's no reason for the force to change
just because the apple happens to be in motion. If it weighs 1N on
the scale, then it weighs 1N while it's sailing over the fence, 1N on
the teacher's desk, and 1N while it's falling from the tree.

What storm causes flash floods?
Tornado
Thunderstorm
Hurricane

Answers

Answer:

hurricane.

Explanation:

............................

The field around a solenoid has a configuration similar to the field of a long, straight wire.True
False

I feel like this is false because I know it is similar to that of a bar magnet. Right?

Answers

The statement is "The field around a solenoid has a configuration similar to the field of a long, straight wire." is false.

In Alamogordo, New Mexico, falling rocks are a hazard along US Highway 82. If a rock falls from a cliff with 157 N of force,what was the mass of the rock?