4) A 2.0 kg breadbox on a frictionless incline of angle 0 = 40° is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 120 N/m. The box is released from lellll rest when the spring is unstretched. Assume that the pulley is massless and frictionless. (a) What is the speed of the box when it has moved 10 cm down the incline? (b) How far down the incline from its point of release does the box slide before momentarily stopping, and what are the (c)

4) A 2.0 kg breadbox on a frictionless incline of angle 0 = 40° is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 120 N/m. The box is released from lellll rest when the spring is unstretched. Assume that the pulley is massless and frictionless. (a) What is the speed of the box when it has moved 10 cm down the incline? (b) How far down the incline from its point of release does the box slide before momentarily stopping, and what are the (c)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A pendulum, 2.0 m in length, is released with a push when the string is at an angle of 25 o from the vertical. If the initial speed of the pendulum is 1.2 m/s, what is its speed at the bottom of the swing?
A pendulum consists of a 2.8 kg stone swinging on a 4.2 m string of negligible mass. The stone has a speed of 7.6 m/s when it passes its lowest point. (a) What is the speed when the string is at 56°to the vertical? (b) What is the greatest angle with the vertical that the string will reach during the stone's motion? (c) If the potential energy of the pendulum-Earth system is taken to be zero at the stone's lowest point, what is the total mechanical energy of the system? (a) Number i Unit (b) Number Unit (c) Number i Unit > > >
If the hand does 40 J of work on the 2.5 kg cart, how fast will it travel? If the person does 480 J of work on the 32kg box to move it at a speed of 4 m/s, how much energy is dissipated due friction? If the spring is compressed 12 cm and has a constant of 860 N/m, how high will the 1.3 kg chicken go?Use the values given in the problem. How much work does the weightlifter do?Use the values given in the problem. How much work does the cable do?
A 1.6 kg breadbox on a frictionless incline of angle 0 = 35° is connected, by a cord that runs over a pulley, to a light spring of spring %3D constant k = 10O N/m, as shown in the figure. The box is released from rest when the spring is unstretched. Assume that the pulley is massless and frictionless. (a) What is the speed of the box when it has moved 10.7 cm down the incline? (b) How far down the incline from its point of release does the box slide before momentarily stopping, and what are the (c) magnitude and (d) direction of the box's acceleration at the instant the box momentarily stops? (a) Number Unit (b) Number i Unit (c) Number Unit (d) > > >
In the figure, a block of rnass m=12 kg is released from rest on a frictionless incline of angle 0 = 30°. Below the block is a spring that can be compressed 2.0 cm by a force of 270 N. The block momentarily stops when it compresses the spring by 5.5 cm. A) How far does the block move down the incline from its rest position to this stopping point ? B) What is the speed of the block just as it touches the spring?
A hydroelectric generator converts kinetic energy of water into electrical energy. Each second 2264 m of water passes over a waterfall 191 m high and the generator is only 78 % efficient: (Phe mass of 1 m? of water is 10oo kg.) Pa) What is the total energy available 2b) What is the power generated W
A mass of 25kg is attached to a spring (k=650N/m) and is hung from a ceiling. The mass is released at a height h when the spring is unstretched. a) What is the speed of the mass when it has fallen a distance of 0.30m? b) What is the minimum release height (h) if the mass does not strike the floor? Both parts answered.
plz, physics , please solve this question
A certain spring is found not to obey Hooke's law; it exerts a restoring force F(x) = -ax² - 6x³ if it is stretched or compressed, where: a = 10.0N/m², B = 300.0N/m³ The mass of the spring is negligible. Calculate the potential energy function U(x) for this spring, if U(x=0) = 0. Find the spring potential energy at x = 0.500 m
11. (i) A small75g toy rocket is launched straight up from the ground at 72 km/h (a) What is the kinetic energy of the toy rocket? (b) Find the work done by gravity after it has risen 10 m. (i) (a). The kinetic energy of the toy rocket is = 15000 J + (b). The work done by gravity after it has risen 10 m is = 7.35J (ii) (a) Following diagram shows a person is pushing the object with a force F through a distance x. F M Which of the following will not change the amount of work done by the man? changing the direction of the force F + (b). In which of the following cases is the kinetic energy of the object greatest ?
A 0.5 kg ball experiences the one-dimensional, conservative force Fx as shown in Figure 1. The corresponding potential energy versus x is is shown in Figure 2. No friction involves throughout the path. The ball has a total energy of 60.0 J and the zero potential reference is at x = 0 m. [Answer in 3 significant figures] F, versus x 30 25 20 15 10 0. -5 0 2. 4 5 -6- 8 - 6. 10 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 x (m) Figure 1 Conservative force versus position Potential energy versus X 1. 1. 1. 3. (N) *)
Please answer quickly