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A 20 gram stone is tied to string 50 meter long is being whirled in a circle with a speed of 36 Kilometer per hour find the tension in string?
Wiki User
∙ 14y ago
Convert the speed to meters per second. Use the formula acceleration = speed squared / radius to find the centripetal acceleration. Then use the formula force = mass x acceleration to find the corresponding force.
Wiki User
∙ 14y ago
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How could you use a piece of string thumbtack and a pencil to construct a circle with radius AB?
Loop the string around the thumbtack and the pencil so that the distance from the tack to the pencil point is AB units. Fix the thumbtack to where you want the centre of the circle. Using the pencil, and with the string taut, mark its positions. These will lie on a circle with radius AB.
How do you draw a circle with a pencil and ruler?
Use the ruler to measure the size of the circle you want - this will be a line all the way across the whole circle. Then, measure a piece of string with the ruler -- make this half the size of the original line. Use a thumbtack to tack the string in the spot you want the middle of your circle. Use a bit of tape to tape the other end onto your pencil (don't wrap it around or you will end up with a smaller circle!) Gently move the pencil around the thumbtack to make your circle.
Define the focus and the eccentricity of an ellipse?
A circle is perfectly round, and has one center. An ellipse is like a circle with TWO "centers", and each "center" is called a "focus". The plural of "focus" is "foci". Take a piece of string and tie a loop in each end. Put a pin through the loops, and hold it still in the center of the circle. Place the tip of your pencil at the center of the string, and you can draw a circle by keeping the string taut. Now take TWO pins, and put one pin at each end of the string; place the pins at some short distance apart, and hold them there. Place your pencil and draw, and the shape you draw will be an ellipse. The two pinpoints are the focuses, or foci, of the ellipse. Eccentricity is a measure of how far the ellipse varies from a circle. An ellipse with an eccentricity of zero _IS_ a circle, while an eccentricity of 1.0 is a straight line, with that string stretched out straight. In astronomy, every natural orbit is an ellipse.
How would you draw a circle on the ground with a radius of 5 meters?
Put a peg in the ground where you want the centre of the circle. Tie a string to the peg - loose enough so tat the string is free to rotate around the peg. Measure 5 metres along the string, from the peg, and at that point tie something that will mark the ground - a stick, for example. Walk around the central peg, holding the stick to the ground and keeping the string taut.
How long does a piece of string need to be to make a circle that is 32 inches in diameter?
pi*32 = 100.53 inches (approx)
Why A stone tied at the end of a string is whirled in a circle If the string breaks the stone flies away in tangential direction?
As force acting in a circular path is always tangential to the path
What are toruses?
A torus is a shape like a doughnut or tyre innertube: the shape that is formed if a circle is spun or rotated about a centre that is outside the circle. Picture a coin being whirled around in big circle at the end of a string: this creates a torus. The two defining dimensions are the diameter of the big circle (the length of the string) and the diameter of the small circle (the coin).
There is 260g block on a 50cm -long string swings in a circle on a horizontal frictionless table at 50rpm What is the speed of the blockWhat is the tension in the string?
The linear speed will be: v = 2 * pi * r * f, where r is circle radius, f is rotations per second. To calculate tension, we can use formula for centripetal force, which is: F = mv2 / r. This centripetal force will be the tension in the string.
A ball is whirled on a string then the string breaks what causes the ball to move off in a straight line?
inertia
What is meant by string in tension?
the force apply on string it vibrate this vibration is called tension of the string
What keeps the planets from being pulled to the sun's suface by gravity?
The energy of their rotation round their orbits acts against the central force of gravity, in the same way as a ball on a string can be whirled round even though the tension in the string is pulling the ball towards the centre all the time.
Which factor would lower the pitch of a string?
The tension of the string. Less tension = lower pitch. This can be achieved by loosening the string or lengthening the string.
A 2 kg ball on a string is rotated about a circle of radius 10 m The maximum tension allowed in the string is 50 N What is the maximum speed of the ball?
15.8 m/s
What will be tension in string if same force acts on the ends of string?
The tension in any part of the string is equal to the force that pulls the string at the ends (assuming for simplicity that the string is basically weightless).
What is the solution of tension of the string?
apply the formula of tension
If the tension in the string is doubled what will be the effect on the speed of standing waves in the string?
The speed of the standing waves in a string will increase by about 1.414 (the square root of 2 to be more precise) if the tension on the string is doubled. The speed of propagation of the wave in the string is equal to the square root of the tension of the string divided by the linear mass of the string. That's the tension of the string divided by the linear mass of the string, and then the square root of that. If tension doubles, then the tension of the string divided by the linear mass of the string will double. The speed of the waves in the newly tensioned string will be the square root of twice what the tension divided by the linear mass was before. This will mean that the square root of two will be the amount the speed of the wave through the string increases compared to what it was. The square root of two is about 1.414 or so.
What are some examples of tension?
Nervous tension: "The tension from waiting for the jury to give its verdict was giving me a headache."Physical tension: "If you overtighten the guitar string, the tension will be so great the string will snap."
