A rock of mass 13 kg is tied to a string of length 2.5 m, with...
A rock of mass 13 kg is tied to a string of length 2.5 m, with the other end of the string fastened to the ceiling of a tall room. While hanging vertically, the rock is given an initial horizontal velocity of 2.1 m/s. How high will the rock swing? Express your answer in terms of the angle θ that the string makes with the vertical when the rock is at its highest point.
Homework Answers
You swing a rock tied to a string in a vertical circle. (A) Construct a consistent...
You swing a rock tied to a string in a vertical circle. (A) Construct a consistent force diagram for the rock as it passes the low point in its swing. Use two vectors (mg and Tbottom). (B) Determine the force that the string exerts on the rock. Express your answer in terms of vt (speed of the rock in the high point in its swing), R ( length of the string), m ( mass of the rock), and constant g.
10. An object of mass m is tied to a string of length L and a...
10. An object of mass m is tied to a string of length L and a variable horizontal force is applied o zero and gradually increases until the string makes an angle with the vertical. Work done by the force F is: n it which starts at A) mgl B) mgl (1-sin θ ) C) mgl (1-cos ) D) mgl (1 + sin θ ) E) mgL cos6
Pendulum. A small rock with mass 0.10 kg is fastened to a massless string with length...
Pendulum. A small rock with mass 0.10 kg is fastened to a massless string with length 0.84 m to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45° with the vertical. Air resistance is negligible (a) What is the speed of the rock when the string passes through the vertical position? m/s (b) What is the tension in the string when it makes an angle of 45° with the vertical? (c) What is...
A pendulum consists of a 2.5-kg bob attached to a light 1.2 m-long string. While hanging...
A pendulum consists of a 2.5-kg bob attached to a light 1.2 m-long string. While hanging at rest with the string vertical, the bob is struck a sharp horizontal blow, giving it a horizontal velocity of 3m/s. At the instant the string makes an angle of 38 degree with the vertical, what is The speed, The tension in the string? What is the angle of the string with the vertical when the bob reaches its greatest
A small rock with mass 0.50 kg is tied to the free end of a light...
A small rock with mass 0.50 kg is tied to the free end of a light string that is 8.0 m long. The rock is moving in a horizontal circle and the string makes an angle of 37° with respect to the vertical. a. What is the radius r of the circular path of the rock? b. What is the tension in the string? c. What is the period of the rock’s motion, the time it takes to complete one...
physics A pendulum consists of a small object hanging from the ceiling at the end of...
physics
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.79 m. With the string hanging vertically, the object is given an initial velocity of 2.1 m/s parallel to the ground and swings upward in a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle θ with its initial vertical orientation and then...
A rock (mass = 150g) is being swung in a circle. The length of the string...
A rock (mass = 150g) is being swung in a circle. The length of the string is 0.5 m. If the string makes an angle of 30 degrees with the horizontal, what is the tension in the string and what is the velocity of the rock? Please show and explain as much work as possible. Thank you!
This mass (m) on a string (of length L) is moving in a horizontal circle. The...
This mass (m) on a string (of length L) is moving in a horizontal circle. The string makes an angle of 60 degrees with the vertical. (Express your answers in terms of m, L, g, and theta) Find the tension in the string. Find the speed of the mass.
A pendulum consists of a small object hanging from the ceiling at the end of a...
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.71 m. With the string hanging vertically, the object is given an initial velocity of 1.6 m/s parallel to the ground and swings upward in a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle θ with its initial vertical orientation and then swings...
10. An object of mass m is tied to a string of length L and a variable horizontal force is applied o zero and gradually increases until the string makes an angle with the vertical. Work done by the force F is: n it which starts at A) mgl B) mgl (1-sin θ ) C) mgl (1-cos ) D) mgl (1 + sin θ ) E) mgL cos6
Pendulum. A small rock with mass 0.10 kg is fastened to a massless string with length 0.84 m to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45° with the vertical. Air resistance is negligible (a) What is the speed of the rock when the string passes through the vertical position? m/s (b) What is the tension in the string when it makes an angle of 45° with the vertical? (c) What is...
A pendulum consists of a 2.5-kg bob attached to a light 1.2 m-long string. While hanging at rest with the string vertical, the bob is struck a sharp horizontal blow, giving it a horizontal velocity of 3m/s. At the instant the string makes an angle of 38 degree with the vertical, what is The speed, The tension in the string? What is the angle of the string with the vertical when the bob reaches its greatest
physics
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.79 m. With the string hanging vertically, the object is given an initial velocity of 2.1 m/s parallel to the ground and swings upward in a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle θ with its initial vertical orientation and then...
This mass (m) on a string (of length L) is moving in a horizontal circle. The string makes an angle of 60 degrees with the vertical. (Express your answers in terms of m, L, g, and theta) Find the tension in the string. Find the speed of the mass.
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