Question

A 2.0 kg ball is attached to the end of a 1.6 m string and spins...

  1. A 2.0 kg ball is attached to the end of a 1.6 m string and spins in a vertical circle.
    1. What is the weight of the ball?
    2. Find the velocity if the centripetal force is four times the weight.
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Given that,

mass of ball (m)= 2kg

length of string=radius of vertical ball (r)= 1.6m

A. Weight of the ball (W)= mg ........... (it always act downward irrespective of the position of the ball )

Where, g= gravitational force =9.81 m/s2

therefore, W=m*g=2*9.81= 19.62 N

B.

Since we have given the condition that our centripetal force = 4 times the weight of the ball

so that according to the formula we have,

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A ball with a mass of 1.50 kg is attached to the end of a string...
A ball with a mass of 1.50 kg is attached to the end of a string that is 0.400 m in length. You swing the ball so that it swings in a vertical circle, traveling at a speed of 4.80 m/s at the top of the circle. (a) Draw the free-body diagram of the ball. Make sure you label all your vectors and clearly indicate their direction. (b) What is the tension in the string when the ball is at...
A 0.37 kg ball is attached to a 0.71 m long string. The other end of...
A 0.37 kg ball is attached to a 0.71 m long string. The other end of the string is then attached to the ceiling in order to create a pendulum. It is then drawn back such that the string makes an angle of 50 degrees relative to the ceiling and then released from rest. How fast is the pendulum traveling when the string makes an angle of 20 degrees relative to the vertical
1. For a stationary ball of mass m = 0.200 kg hanging from a massless string,...
1. For a stationary ball of mass m = 0.200 kg hanging from a massless string, draw arrows (click on the “Shapes” tab) showing the forces acting on the ball (lengths can be arbitrary, but get the relative lengths of each force roughly correct). For this case of zero acceleration, use Newton’s 2nd law to find the magnitude of the tension force in the string, in units of Newtons. Since we will be considering motion in the horizontal xy plane,...
1. An object of mass 1.2 kg is attached to a string of 0.83 m. When...
1. An object of mass 1.2 kg is attached to a string of 0.83 m. When this object is rotated around a horizontal circle, it completes 15 revolutions in 9.6 seconds. a. What is the period (T) of this motion? b. What is the tangential velocity of the object? c. What is the tension on the string? Hint: The tension on the string is the centripetal force that causes the circular motion.
A ball of mass of 10 kg is attached to one end of a string. The...
A ball of mass of 10 kg is attached to one end of a string. The other end of the string is attached to the ceiling. The ball swings and undergoes 5 full oscillations in 18.00 seconds. (a) Calculate the length of the string. _____ m (b) If the amplitude of motion of the pendulum is 15, calculate the total energy of the oscillator. _____ J
The figure shows a ball with mass m = 0.450 kg attached to the end of...
The figure shows a ball with mass m = 0.450 kg attached to the end of a thin rod with length L = 0.415 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed...
The figure shows a ball with mass m = 0.295 kg attached to the end of...
The figure shows a ball with mass m = 0.295 kg attached to the end of a thin rod with length L = 0.306 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically upward position, with zero speed...
There are two weights of the same mass of 2.0 kg2.0 kg attached to a string...
There are two weights of the same mass of 2.0 kg2.0 kg attached to a string looped over a braked pulley. The left weight is lying on the floor, the right one is suspended 1.0 m1.0 m above the floor. There is another weight of mass 0.5 kg0.5 kg attached to the string 20 cm20 cm above the right weight. The string except the part around the pulley is stretched vertically. We eventually release the pulley. What is the speed...
A small ball of mass 61 g is suspended from a string of length 62 cm...
A small ball of mass 61 g is suspended from a string of length 62 cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 25◦ with the vertical, find the centripetal force experienced by the ball. The acceleration of gravity is 9.8 m/s 2 . Answer in units of N
A 5.0-kg object attached to the end of a 4.0-m rope is moving in a vertical...
A 5.0-kg object attached to the end of a 4.0-m rope is moving in a vertical circle. What is the object's linear velocity at the top of the circle if the tension in the rope at this point is 30 N? 6 m/s 8 m/s 9 m/s 10 m/s
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT