Consider the figure above, where a rigid beam of negligible mass and 10 m long is supported by a cable attached to a spring. When NO block is hung from the beam, the length L (cable-spring) is equal to 5 m. Assume that immediately after block (weight of 260 N) is hung at the end of the beam the spring does not stretch, calculate the tension under this assumption. Using this tension find how much the spring stretches. Express the amount the spring is stretched in cm. k =8275 N/m.

Consider the figure above, where a rigid beam of negligible mass and 10 m long is supported by a cable attached to a spring. When NO block is hung from the beam, the length L (cable-spring) is equal to 5 m. Assume that immediately after block (weight of 260 N) is hung at the end of the beam the spring does not stretch, calculate the tension under this assumption. Using this tension find how much the spring stretches. Express the amount the spring is stretched in cm. k =8275 N/m.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 68P: An aluminium (=2.7g/cm3) wire is suspended from the ceiling and hangs vertically. How long must the...

See similar textbooks

Similar questions

In an earlier step, an FBD was created for the bottom-most block under the assumption of equilibrium. Which statement best describes the modifications necessary if that FBD is redrawn under the assumption ay<0? The weight vector labeled F g,1 would be unchanged. The normal-force vector labeled Fn,f→1 would become shorter, but the normal-force vector labeled Fn,2→1 would become shorter by a greater amount. The weight vector labeled F g,1 would change length, becoming shorter, but the normal-force vectors would be unchanged. The diagram requires no changes because all of the forces remain the same. The weight vector labeled Fg,1 and the normal-force vector labeled Fn,2→1 would be unchanged, but the normal-force vector labeled Fn,f→1 would become shorter. Because things feel partially weightless in the elevator, all three vectors would be shorter. The weight vector labeled Fg,1 would be unchanged. The normal-force vector labeled Fn,2→1 would become longer, but…
What would be the maximum weight W of the block, shown in the following figure, so that the tension developed in any cable does not exeed 100 N
In the friction experiment, if the friction block has a mass of 599 g, and it started to move at a constant speed after giving it a slight push when the mass in the hanger is 284 g (including the hanger), what is the coefficient of kinetic friction?
A block of mass m is pulled along a rough horizontal floor by an applied force P as shown. The normal force N is :
Two masses mA =9.3kg and mB=6.1kg are on inclines and are connected together by a string as shown in the figure. The angles theta subscript A=700 and theta subscript B = 360 . In the absence of the friction, the force F is required to pull the masses at a constant velocity up the fixed inclines. The force F is now removed. What is the magnitude of the acceleration of the two blocks? Take g =9.81 m/s2, and express your answer using two decimal places.
An archer must exert a force of 345 N on the bowstring shown in Figure (a) such that the string makes an angle of ? = 40.0° with the vertical. If the applied force is replaced by a stretched spring as in Figure (b) and the spring is stretched 27.0 cm from its unstretched length, what is the spring constant?
An object hangs between two walls which are 1.8 m apart. If the rope sags 15° below horizontal and the object’s mass is 1.5 kg, what is the tension in the rope?
A telephone pole is supported by a guy wire which exerts a pull of 300 N on the top of the pole. If the angle between the wire the pole is 60 degrees, what is the vertical component of the pull on the pole?
An ideal spring hangs vertically. When a 359- g object is hung from the bottom end, and lowered gently, the spring stretches 6.23cm. How much would the spring have stretched, in cm, if the mass of the object had been 601 g instead ?
Find an expression for the tension in a rope with a weight attached to its centre. The force exerted by the weight is F and the angle made with the horizontal is t.
If it takes 5.30 N to stretch a spring 7 cm, and if the spring is then cut in 9 equal pieces, what force (in N) does it take to stretch one of the pieces 7 cm?
Find the magnitude of the tension in each supporting cable shown below. In each case, the weight of the suspended body is 100.0 N and the masses of the cables are negligible.