Homework Answers
The net force acting on the ball gives rise to centripetal force. So the net force is
In this case the force acting towards the center of the circular track is taken positive and the force directly pointing away from center is taken as negative. So the force for to tension is positive and due to gravity is negative. This gives us
So B is the correct option.
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Question 4 A FTension = 25 N Submit FGravity = 10 N A ball is attached...
A ball attached to a string is moving in a vertical circular path at a constant...
A ball attached to a string is moving in a vertical circular
path at a constant speed. The tension in the string is
greatest?
A) when the ball is at its highest point
B) when the ball is at its lowest point
C) when the string is horizontal
D) the tension in the string is constant
A ball attached to a string is moving in a vertical circular path at a constant speed. e tension in the string is greatest...
7, A 25 g ball is attached to a 0.5 m long string and swung in...
7, A 25 g ball is attached to a 0.5 m long string and swung in a circle as shown below a. Calculate the tension in the string. (2 marks) b. Calculate the centripetal force. (1 mark) c. Calculate the speed of the ball. (3 marks) d. Calculate the period of the ball's rotation. (1 mark) e. If the ball was spun faster, what would happen to the radius of the ball's path? (1 mark)
A 0.25 kg ball is attached to a string. The ball goes around in a circle...
A 0.25 kg ball is attached to a string. The ball goes around in a circle that is horizontal (parallel) to the ground. The circular path has a radius of 1.5 m. The rotation is at a constant rate of 50 rpm. a) list the given b) what is the tangential velocity of the ball? c) what is the centripetal acceleration (magnitude and direction)? d) what is the magnitude of the tangential acceleration? e) what is the soure of the...
Your friend is working on a problem with a 100 gram ball attached to a 0.6...
Your friend is working on a problem with a 100 gram ball attached to a 0.6 m string being swung around in a circular path contained vertical plane. Your friend says "I know the tension force in the string at the top of the circular arc because the ball is moving with a speed of 2 m/s." You look at their work and they used a free body diagram with the force of gravity and tension force. They incorporated Newton's...
10) When a car makes a turn at a constant velocity, on a flat level road,...
10) When a car makes a turn at a constant velocity, on a flat level road, does the car experience a net force while making the turn? (Be careful Canvas my not have the same order for the answers) No, because the frictional force is equal to the centripetal force. No, because the speed is constant. Yes, it is the frictional force and is directed towards the center Yes, it is the frictional force and is directed outward away from...
A 5.0 kg ball is swung in a vertical circle with a radius of 75 cm....
A 5.0 kg ball is swung in a vertical circle with a radius of 75 cm. At the lowest point in its motion the ball is 40 cm above the ground. When the ball is at the highest point the tension in the string is 75 N when suddenly the string breaks. How far away horizontally does the ball hit the ground (measured from where it was when the string broke)? Include a diagram showing the circular motion the ball...
1- A 300 ? mass is attached to a solid 40 ?? long string the other...
1- A 300 ? mass is attached to
a solid 40 ?? long string the other end of which is secured to the
ceiling. The mass is given an initial speed which makes it swing
around a circular path in the horizontal plane without changing its
speed and without changing its height. The object completes 2
revolutions in 2 seconds.
A) What is the magnitude of the angular velocity of this
circular motion? B) Find the tension in the string....
circular Motion and Other Applications of Newton's Laws. 4. (5pts) A rock attached to a string...
circular Motion and Other Applications of Newton's Laws. 4. (5pts) A rock attached to a string swings in a vertical circle. Draw the free body diagram that describes the force(s) on the rock when it is at the lowest point mj
A small plasticl ball is tied to a very light 26.0 cm string that is attached...
A small plasticl ball is tied to a very light 26.0 cm string that is attached to the vertical wall of a room. A uniform horizontal electric field of magnitude 36,000 N/C exists in this room. When the ball has been given an excess charge Q = -1.10 uC, you observe that the ball remains suspended, with the string making an angle of 17.4 degrees with the wall. A) What is the direction the electic field E in the room?...
WK-3. Sopheak is swinging a 0.250kg ball back and forth thru the air on a string...
WK-3. Sopheak is swinging a 0.250kg ball back and forth thru the air on a string of length L-0.850m. y (vertical) a) The ball has moved a short distance AS-0.0500m along its circular path as shown in the figure. 1) Draw on the figure the free body diagram for the ball. 30.0° At this position, the force of the air on the ball is 0.350N and the tension in the string is 1.25N. (horizo 2) Calculate the work done on...
A ball attached to a string is moving in a vertical circular
path at a constant speed. The tension in the string is
greatest?
A) when the ball is at its highest point
B) when the ball is at its lowest point
C) when the string is horizontal
D) the tension in the string is constant
A ball attached to a string is moving in a vertical circular path at a constant speed. e tension in the string is greatest...
7, A 25 g ball is attached to a 0.5 m long string and swung in a circle as shown below a. Calculate the tension in the string. (2 marks) b. Calculate the centripetal force. (1 mark) c. Calculate the speed of the ball. (3 marks) d. Calculate the period of the ball's rotation. (1 mark) e. If the ball was spun faster, what would happen to the radius of the ball's path? (1 mark)
10) When a car makes a turn at a constant velocity, on a flat level road, does the car experience a net force while making the turn? (Be careful Canvas my not have the same order for the answers) No, because the frictional force is equal to the centripetal force. No, because the speed is constant. Yes, it is the frictional force and is directed towards the center Yes, it is the frictional force and is directed outward away from...
1- A 300 ? mass is attached to
a solid 40 ?? long string the other end of which is secured to the
ceiling. The mass is given an initial speed which makes it swing
around a circular path in the horizontal plane without changing its
speed and without changing its height. The object completes 2
revolutions in 2 seconds.
A) What is the magnitude of the angular velocity of this
circular motion? B) Find the tension in the string....
circular Motion and Other Applications of Newton's Laws. 4. (5pts) A rock attached to a string swings in a vertical circle. Draw the free body diagram that describes the force(s) on the rock when it is at the lowest point mj
WK-3. Sopheak is swinging a 0.250kg ball back and forth thru the air on a string of length L-0.850m. y (vertical) a) The ball has moved a short distance AS-0.0500m along its circular path as shown in the figure. 1) Draw on the figure the free body diagram for the ball. 30.0° At this position, the force of the air on the ball is 0.350N and the tension in the string is 1.25N. (horizo 2) Calculate the work done on...
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