A ball of mass m is attached to a string of length L and released from rest

Question:

A ball of mass m is attached to a string of length L and released from rest at the point A in FIGURE 8-41.

(a) Show that the tension in the string when the ball reaches point B is 3mg, independent of the length l.

(b) Give a detailed physical explanation for the fact that the tension at point B is independent of the length l.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

See More Books

Question Posted: Aug 31, 2017 11:21 AM

See More Questions

A small ball of mass M is attached to the end of a uniform rod of equal mass M and length L that is pivoted at the top (Fig. P15.51) (a) Determine the tensions in the rod at the pivot and at the...
A block of mass m is attached to a string and suspended inside a hollow box of mass M. The box rests on a scale that measures the system's weight. (a) If the string breaks, does the reading on the...
A hockey puck of mass m is attached to a string that passes through a hole in the center of a table, as shown in FIGURE 6-73. The hockey puck moves in a circle of radius r. Tied to the other end of...
An airplane has a ground velocity of 4 0 0 km / h , [ N 6 0 W ] . The plane is affected by a 9 0 km / h wind which is coming from the direction [ N 8 0 E ] . Determine the magnitude and the direction...
Calculating Break-Even in each of the following cases, calculate the accounting break-even and the cash break-even points. Ignore any tax effects in calculating the cash break-even. Unit Price Unit...
Green Golf Accessories sells golf shoes, gloves, and a laser-guided range-finder that measures distance. Shown below are unit cost and sales data. Fixed costs are $620,000. Instructions (a) Compute...
Goods destroyed by fire should be credited to (a) The purchases account (b) Goods lost by fire account (c) Sales account
Gerstner Corporation is authorized to issue 10,000 shares of $40 par value, 10% preferred stock and 200,000 shares of $5 par value common stock . On January 1, 2014, the ledger contained the...
Machine A has an immediate cost of $10,000, and it will earn a net income of $5000 per year for a total of 4 years. Machine B has an immediate cost of $25,000, and it will earn a net income of $4400...
Sketch vo for each network of Fig. 2.176 for the input shown. 20 V Ideal v Ideal -20 V
(a) Ball 1 is thrown to the ground with an initial downward speed; ball 2 is dropped to the ground from rest. Assuming the balls have the same mass and are released from the same height, is the...
An ice cube is placed on top of an overturned spherical bowl of radius r, as indicated in FIGURE 8-42. If the ice cube slides downward from rest at the top of the bowl, at what angle does it...
The supply of roses in the United States is made up of U.S. grown roses and imported roses. Draw a graph to illustrate the U.S. rose market with free international trade. On your graph, mark the...
Popcorn company is expected to pay $1 dividend per share at the end of this year, $1.50 dividend per share at the end of year 2, $2 dividend per share at the end of year 3, and $2.50 dividend per...
Increased spending for COVID economic relief is an important issue for many struggling in the current economy. A specific policy to combat this issue is put forward and it is found that 78% of...
James worked a total of 186 hours for the month of June 2020. His rate per hour is working hours of the 450 per hour. Overtime premium is 30%. The company is 8 hours a day. The company's regular...
Question Researchers collected a simple random sample of 36 children who had been identified as gifted in a large city. The following histograms show the distributions of the IQ scores of mothers and...
Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 700 units @ $55 per unit $38,500 Purchases: January 10: 700 units @ $60 per unit January 20: 1,100 units...
Find the difference between the ground- and first excited-state translational energies of a helium atom in a 1 mm 3 cubic box. Compare this to room temperature energy k B T at 300 K.
Estimate a range for the optimal objective value for the following LPs: (a) Minimize z = 5x1 + 2x2 Subject to X1 - x2 3 2x1 + 3x2 5 X1, x2 0 (b) Maximize z = x1 + 5x2 + 3x3 Subject to X1 + 2x2 +...
Figure shows a circuit section of four air-filled capacitors that is connected to a larger circuit. The graph below the section shows the electric potential V(x) as a function of position x along the...
In Figure a 20JV battery is connected across capacitors of capacitances C1 = C6 = 3.00F and C3 = C5 = 2.00C2 = 2.00C4 = 4.00F. What are? (a) The equivalent capacitance Ceq of the capacitors and (b)...
Plot 1 in Figure a gives the charge q that can be stored on capacitor 1 versus the electric potential 1 set up across it. The vertical scale is set by qs = 16.0C, and the horizontal scale is set by...
Berbice Inc. has a new project, and you were recruitment to perform their sensitivity analysis based on the estimates of done by their engineering department (there are no taxes): Pessimistic Most...
#3) Seven years ago, Crane Corporation issued 20-year bonds that had a $1,000 face value, paid interest annually, and had a coupon rate of 8 percent. If the market rate of interest is 4.0 percent...
I have a portfolio of two stocks. The weights are 60% and 40% respectively, the volatilities are both 20%, while the correlation of returns is 100%. The volatility of my portfolio is A. 4% B. 14.4%...

A ball of mass m is attached to a string of length L and released from rest

Question:

L. A B.

Step by Step Answer:

Use the conservation of mechanical energy and the geom...View the full answer

Physics

Students also viewed these Mechanics questions