14-58. The 50-lb block rests on the rough surface for which the coefficient of kinetic friction is µ = 0.2. A force F = (40 + s) Ib, where s is in ft, acts on the block in the direction shown. If the spring is originally unstretched (s = 0) and the block is at rest, determine the power developed by the force the instant the block has moved s = 1.5 ft. k = 20 lb/ft 30

14-58. The 50-lb block rests on the rough surface for which the coefficient of kinetic friction is µ = 0.2. A force F = (40 + s) Ib, where s is in ft, acts on the block in the direction shown. If the spring is originally unstretched (s = 0) and the block is at rest, determine the power developed by the force the instant the block has moved s = 1.5 ft. k = 20 lb/ft 30

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

Related questions

Q: A 4.4-kg block is pushed 3.5 m up a vertical wall with constant speed by a constant force of…

A: Given information:Mass of the block (m) = 4.4 kgCoefficient of friction between the block and the…

Q: A peacock mantis shrimp smashes itsprey with a hammer-like appendage by storing energy in a…

Q: A 3-kg block has a speed of v=9 m/s at point O as it travels along a rough incline OA with μk=0.25.…

Q: A block of mass m-2.69kg is released from rest at an unknown height h. The coefficient of friction…

Q: F X m A force |F] = 30 N is applied to the object with mass m - 2 kg. The angle theta 25 degree. The…

A: Given: force (F) = 30 N mass (m) = 2 kg θ = 25odisplacement (d) = 2 m coefficient of kinetic…

Q: In the system shown in the figure, suppose the block has a mass of 2.5 kg, the spring has a force…

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 47…

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

Q: 10-kg block is dragged along an inclined plane (Ø= 300) with a constant speed of 2 m/s. If F is the…

A: M= 10kg Angle is 30° Speed(v) = 2m/s Applied force is F Coefficient of friction (u) = 0.25

Q: A spring with a force constant K obeys Hook's Law. It requires 4 J of work to stretch it through 10…

A: A spring with a force constant K obeys Hook's Law. Hookes law gives the force that must be exerted…

Q: A 2.5-kg block www is held at rest against a spring (k = 1200 N/m), compressing it d = 5.0 cm from…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: An 85 cm cubical box is tied to the roof of a car. Estimate the additional power needed to travel at…

A: using the formula, CD = Fdrag0.5×ρ×u2×AFdrag = CD×0.5×ρ×u2×A

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

A: We know spring force Fs as the block is moved right or left, always in the opposite direction as the…

Q: A spring with a spring constant of 66 N/m is compressed a 0.111 kg ball horizontally off a desk. The…

A: Given:- The spring constant is k = 66 N /m The compressed length is L = 15 cm = 0.15 m The mass of…

Q: The above block was initially compressed by 10cm so that both springs were completely compressed.…

Q: An object of mass 6 kg is at a certain height above the ground. If the potential energy of the the…

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 71…

Q: Justin works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

Q: 11.) In physics, the work done on an object is equal to the integral of the force on that object…

A: Force in simple terms is nothing but a push or pull. Every object in this world exerts a force on…

Q: the spring of the figure is compressed 25cm, if the elastisity constant is 780N/m and the 0.3kg…

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

A: Given force constant (k)=50 N/m mass of block =50 kg incline angle=300 displacement(x)=0.5 m…

Q: (a) A spring exerts a force of 7.2N when stretched 1.2m beyond its natural length. Assuming that…

A: (a) Given value--- Force = 7.2 N. x = 1.2 m. We have to find--- work done? (b) Given value---…

Q: SQU is trying a new particle accelerator design with a mechanical component using a spring that does…

A: Force on the spring for a displacement x f(x)=44.6x5+62.6x3 Work done for a small displacement dx;…

Q: constant of 65 N/m is compressed 35.0 cm and used to launch a 0.500 kg ball horizontally off a desk.…

A: Given:- A spring with a spring constant K = 65 N/m The compressed distance L = 35 cm = 0.35 m The…

Q: If the average book has a mass of 1.60 kg with a height of 18.8 cm, and an average shelf holds 31…

Q: A 2.50 kg textbook is forced against one end of a horizontalspring of negligible mass that is fixed…

A: Given, Mass of the book, m=2.5 kg Force constant, k=250 N/m Kinetic friction, μk=0.3 Initially the…

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

A: (a) Free body diagram:

Q: If it requires 9.0 JJ of work to stretch a particular spring by 2.0 cmcm from its equilibrium…

A: Write the expression for the work done by the spring.

Q: hen an archer pulls an arrow back in his bow, he is storing potential energy in the stretched bow.…

Q: A spring, of spring constant k, is stretched out by a displacement from equilibrium of d and then…

Q: ) How much work is done by the block (in Joules) on the spring? e) How much work is done by the…

Q: When a 3.00-kg object is hung vertically on a certain light spring that obeys Hooke's law, the…

A: See below

Q: (a) The figure below shows an 8.00 kg stone at rest on a spring. The spring is compressed 10.0 cm by…

A: Given, m = 8 kg x = 10 cm

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

A: We know spring force as the block is moved right or left, always in the opposite direction as the…

Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

A: 1) Work done by spring on block W = -12kx2 k is spring constant and x is change in length of…

Question

100%

14-58. The 50-lb block rests on the rough surface for
which the coefficient of kinetic friction is µ = 0.2. A force
F = (40 + s) Ib, where s is in ft, acts on the block in the
direction shown. If the spring is originally unstretched
(s = 0) and the block is at rest, determine the power
developed by the force the instant the block has moved
s = 1.5 ft.
k = 20 lb/ft
30

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

An object of mass 6 kg is at a certain height above the ground. If the potential energy of the the object is 280 J, find the height at which the object is with respect to the ground. Given,g 10 m/s-2.
(a) A steel ball of mass 0.2 kg is projected vertically upwards, from the top of a building 100 m high, with an initial velocity of 40 m.s. Ignore air frietion and calculate: i. the total mechanical energy of the ball the time it was projected. ii. the total mechanical energy of the ball the time it reached the ground level (i.e at the bottom of the building) -1 iii. the total mechanical energy of the ball the time it reaches its maximum height above the ground. iv. the velocity of the ball the time it reached the ground level v. time taken by the ball to reach the ground level from the time it was projected vi. the maximum height above the ground the ball reached vii. the velocity of the ball the time it was 20 m above the ground (b) Two objects of mass 12 kg and 8 kg respectively move towards each other at velocities 10 m.s and 5 m.s respectively. If the objects unite during collision, calculate the resultant velocity. Page 5
A box with a mass of 6.0 kg is accelerated from rest by force along a floor at a rate of 2.0 m/s^2 for 7.0 s. Determine the net work performed on the box.
A block with mass m = 12 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4599 N/m after being compressed a distance x1 = 0.45 m from the spring’s unstretched length. The floor is frictionless except for a rough patch a distance d = 2.7 m long. For this rough path, the coefficient of friction is μk = 0.41. 1) How much work is done by friction as the block crosses the rough spot? 2) Instead, the spring is only compressed a distance x2 = 0.117 m before being released. How far into the rough path does the block slide before coming to rest? 3) What distance does the spring need to be compressed so that the block will just barely make it past the rough patch when released?
A vertical spring with constant 41.16 N / m rests in its equilibrium position hanging from the ceiling. On its lower end, a mass of 1.68 kg is hung and it is stretched. When the particle has traveled a distance:0.4 m downward (measured from the equilibrium position), calculate the work done by the spring Wsaring and by the force of gravity WgraVÜty respectively: a) Wing= 3.2928 J and Weravity = -6.5856 J b) Wine=-3.2928 J and Weravity= 6.5856 J c) Wsrine= -3.2928 J and Weravity = -6.5856 J d) Wing= 3.2928 J and Weravity = 6.5856 J
)a.) Distinguish between the electromotive force and the potential difference of a cell. Describe an experiment to measure the electromotive force and the internal resistance of a cell.
A spring that obeys Hooke's law is hung in a vertical orientation. The spring is stretched a total of 6.0 cm from its equilibrium length when a 2.0 kg mass hangs from it. The spring, mass system is then pulled downward by an external force which lengthens the spring an additional 10cm. While the spring is being extended what is the work done by the spring?
Calculate the work done (in J) on a 1550 kg elevator car by its cable to lift it 37.5 m at a constant speed, assuming friction averages 115 N. What is the total work done (in J) on the lift?
Please asap
'1. A 40KG box initially at rest is pushed for 5.0m along a rough horizontal floor by a constant horizontally applied force of 130 N. If the coefficient of frietion between the box and the floor is 0.30, find; a) the work done by the applied force, b) the energy lost due to friction, c) the change in kinetic energy of the box, d) the final speed of the box.
Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m, attached to a 50-kg block in an incline 30°. With the spring initially at equilibrium position, the block was pushed 0.3 meters up the incline by a 50-N external force applied parallel to the path. The coefficient of kinetic friction is 0.30. How much work is done by the spring (in Joules) on the block? (Please explain the solution)
Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 40 N/m, attached to a 27-kg block in an incline (0 = 50°). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 21-N external force applied parallel to the path. If the coefficient of kinetic friction is 0.3, determine the work done by the spring (in Joules). Use g = 9.81 m/s². 10