HomeworkLib
Question

A 4 kg stone is whirled at a constant speed in a vertical circle of radius...

A 4 kg stone is whirled at a constant speed in a vertical circle of radius 1 m. At the bottom of the circle the tension is 2mg. The speed of the stone is _____ m/s?

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

at bottom

T = mv^2/r + mg

2mg = mv^2/r + mg

2g = v^2/r + g

v^2/r = g

v = sqrt(rg)

v = 3.13 m/s

0 0
Add a comment
Know the answer?
Add Answer to:
A 4 kg stone is whirled at a constant speed in a vertical circle of radius...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A 0.19-kg ball on a stick is whirled on a vertical circle at a constant speed....

    A 0.19-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o’clock position, the stick's tension is 18 N. Find the tension in the stick when the ball is (a) at the twelve o’clock and (b) at the six o’clock positions.

  • A 0.21-kg ball on a stick is whirled on a vertical circle at a constant speed....

    A 0.21-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o’clock position, the stick's tension is 19 N. Find the tension in the stick when the ball is (a) at the twelve o’clock and (b) at the six o’clock positions.

  • A stone is tied to a string (length = 0.552 m) and whirled in a circle...

    A stone is tied to a string (length = 0.552 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the maximum tension in the string is 5.30% larger than the tension that exists when the circle is horizontal. Determine the speed of the stone.

  • A 0.18-kg ball on a stick is whirled on a vertical circle at a constant speed....

    A 0.18-kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick's tension is 19 N. Find the tension in the stick when the ball is (a) at the twelve o'clock and (b) at the six o'clock positions. (a) = (b) T=

  • A stone at the end of a sling is whirled in a vertical circle of radius...

    A stone at the end of a sling is whirled in a vertical circle of radius = 1.28 m. The center of the sling is at a height = 1.63 m above the ground. The stone is released at point A when the sling is inclined at 30.0° above horizontal, as shown in the figure. If the centripetal acceleration of the stone immediately before release is 42.3 m/s2, at what horizontal distance (in m) does the stone land as measured...

  • A bucket of mass 1.80 kg is whirled in a vertical circle of radius 1.35 m...

    A bucket of mass 1.80 kg is whirled in a vertical circle of radius 1.35 m . At the lowest point of its motion the tension in the rope supporting the bucket is 26.0 N . (a)Find the speed of the bucket. (b)How fast must the bucket move at the top of the circle so that the rope does not go slack?

  • A bucket of mass 2.00 kg is whirled in a vertical circle of radius 1.40 m...

    A bucket of mass 2.00 kg is whirled in a vertical circle of radius 1.40 m . At the lowest point of its motion the tension in the rope supporting the bucket is 26.0 N . Part A:Find the speed of the bucket. Part B: How fast must the bucket move at the top of the circle so that the rope does not go slack?

  • A 0.9 kg ball attached to a cord is whirled in a vertical circle of radius...

    A 0.9 kg ball attached to a cord is whirled in a vertical circle of radius 2.5 m. Find the minimum speed needed at the top of the circle so that the cord remains taut and the ball’s path remains circular.

  • A stone is tied to a string (length L = 1.10 m) and whirled in a...

    A stone is tied to a string (length L = 1.10 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal, and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case, the maximum tension in the string is 15.0% larger than the tension that exists when the circle is horizontal. step 6: Draw the free-body diagram for the forces acting on the...

  • Constants Periodic Table A bucket of mass 2.00 kg is whirled in a vertical circle of...

    Constants Periodic Table A bucket of mass 2.00 kg is whirled in a vertical circle of radius 1.20 m . At the lowest point of its motion the tension in the rope supporting the bucket is 26.0 N. Part A Find the speed of the bucket. Hint: draw a free-body diagram of the bucket at the bottom of the motion. R O a ? IVO AQ v = 4.57 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT