4G4G0.0011:38 O33Physics GA-9...3.The diagram shows how the length of a spring changes when a load of 10N is hung on it.8cmlaad 10 NThe 10 N load is replaced by a 20 N load. What is the new length of the spring?14 cm DА 6ст В11 cm C16 cm4. A spring extends by 6.0cm when a 15N weight is suspended from its lower end.Three af these springs are used as shown to suppart a 90N weight.90 NWhat is the extension of each spring?A 2.0cmB12 cmC 36 cmD 110 cm5. The graph shows extension-load curves for four fibres.Which fibre is the hardest to stretch over the range of loads shown?extensionload

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Description: 4G4G0.0011:38 O33Physics GA-9...3.The diagram shows how the length of a spring changes when a load of 10N is hung on it.8cmlaad 10 NThe 10 N load is replaced by a 20 N load. What is the new length of the spring?14 cm DА 6ст В11 cm C16 cm4. A spring

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3. The diagram shows how the length of a spring changes when a load of 10N is hung on it. S cm 8cm laad j0N The 10 N load is replaced by a 20 N load. What is the new length of the spring? A 6cm B 11 cm C 14 cm D 16 cm

3. The diagram shows how the length of a spring changes when a load of 10N is hung on it. S cm 8cm laad j0N The 10 N load is replaced by a 20 N load. What is the new length of the spring? A 6cm B 11 cm C 14 cm D 16 cm

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 39P: A bungee cord is essentially a very long rubber band that can stretch up to four times its...

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A 1.50-kg box rests atop a massless vertical spring with k = 4250 N/m that has been compressed by 15.0 cm from its equilibrium position. The box is released and leaves the spring when it reaches its equilibrium position. What is the maximum height the box reaches above its original position?
A weight is connected to a spring that is suspended vertically from the ceiling. If the weight is displaced downward from its equilibrium position and released, it will oscillate up and down. (a) If air resistance is neglected, will the total mechanical energy of the system (weight plus Earth plus spring) be conserved? (b) How many forms of potential energy are there for this situation?
A small 0.65-kg box is launched from rest by a horizontal spring as shown in Figure P9.50. The block slides on a track down a hill and comes to rest at a distance d from the base of the hill. The coefficient of kinetic friction between the box and the track is 0.35 along the entire track. The spring has a spring constant of 34.5 N/m, and is compressed 30.0 cm with the box attached. The block remains on the track at all times. a. What would you include in the system? Explain your choice. b. Calculate d. c. Compare your answer with your answer to Problem 50 if you did that problem.
A small 0.65-kg box is launched from rest by a horizontal spring as shown in Figure P9.50. The block slides on a track down a hill and comes to rest at a distance d from the base of the hill. Kinetic friction between the box and the track is negligible on the hill, but the coefficient of kinetic friction between the box and the horizontal parts of track is 0.35. The spring has a spring constant of 34.5 N/m, and is compressed 30.0 cm with the box attached. The block remains on the track at all times. a. What would you include in the system? Explain your choice. b. Calculate d.
In a laboratory experiment, 1 a block of mass M is placed on a frictionless table at the end of a relaxed spring of spring constant k. 2 The spring is compressed a distance x0 and 3 a small ball of mass m is launched into the block as shown in Figure P11.22. The ball and block stick together and are projected off the table of height h. Find an expression for the horizontal displacement of the ballblock system from the end of the table until it hits the floor in terms of the parameters given. FIGURE P11.22
A bungee cord is essentially a very long rubber band that can stretch up to four times its unstretched length. However, its spring constant vanes over its stretch [see Menz, P.G. “The Physics of Bungee Jumping.” The Physics Teacher (November 1993) 31: 483-487]. Take the length of the cord to be along the direction and define the stretch as the length of the cord minus its un-stretched length that is, (see below). Suppose a particular bungee cord has a spring constant, for of and for. (Recall that the of (Recall that the spring constant is the slope of the force versus its stretch (a) What is the tension in the cord when the stretch is 16.7 m (the maximum desired for a given jump)? (b) How much work must be done against the elastic force of the bungee cord to stretch It 16.7 m? Figure 7.16 (credit modification of work by Graeme Churchard)
When a body of mass 0.25 kg is attached to a vertical massless spring, it is extended 5.0 cm from its unstretched length of 4.0 cm. The body and spring are placed on a horizontal frictionless surface and rotated about the held end of the spring at 2.0 rev/s. How far is the spring stretched?
An 8.0-cm-long spring is attached to the ceiling. When a 2.3 kg mass is hung from it, the spring stretches to a length of 16 cm. How long is the spring when a 3.0 kg mass is suspended from it? y=
The uncompressed length of the spring is 2 meters, If the block compresses another 0.5 meters when contacting the spring, what is Va (k = 500 M / m Ma = 4 Kg The friction is 0.25)
When a 59 kg cheerleader stands on a vertical spring, the spring compresses by 5.8 cm. when a second cheerleader stands on the shoulders of the first, the spring compresses an additional 4.2 cm. a.) What is the mass of the second cheerleader?
A spring (k = 1300 N/m) is used to stop a 1320 kg vehicle initially traveling at 4.1 m/s. How much is the spring displaced in doing this task? Δx = m
A spring stretches by 0.12 m when some apples weighing 3.2 N are suspended from it. What is the spring constant k(N/m) of the spring?