An external force acts on a particle during a trip from one point to another and back to that same point. This particle is only effected by conservative forces. Does this particle's kinetic energy and potential change as a result of this trip?
Q: The work done by a conservative force on a system is 10 J, and the initial potentialenergy of the…
A: Given: The work done is W = 10 J. Initial potential energy is PEi = 30 J.
Q: "At a post office, a package of mass 1.3 kg is pushed down a slanted chute with an initial speed of…
A:
Q: On a table that is frictionless lies a block that is 3.5 kg, which is connected to another hanging…
A: M1= 3.5kg M2= 5 kg W = F.S
Q: You apply a constant force of (31 N)i - (31 N)j to a loaded supermarket pushcart as it undergoes a…
A:
Q: A force f (x) acts on a body moving a unit distance along the x-axis from the origin. Show that the…
A: It is given that force, f(x) us acting on a body which is moving a unit distance along x-axis from…
Q: Question 9) During a board game called Rat Trap0, mechanical contraptions are activated in a…
A: The given values are, m=50.0 g=0.05 kgEloss=2.0 Jhi=17 cm=0.17 mhf=4.0 cm=0.04 mvf=13 m/s
Q: Location Height(m) Start A B C D E F 40.0 25.0 28.0 12.0 6.0 14.0 0 PE(J) KE(J) III Energy 0…
A: Given:- The mass of the roller coaster is m = 400 kg The height of the roller coaster is h = 40 m…
Q: A (В D Three small spheres are brought together from large distances away and positioned in the…
A: The objective of the question is to find the work done by an external force in bringing three…
Q: It takes a minimum distance of 98.26 m to stop a car moving at 17.0 m/s by applying the brakes…
A: Given ; case -1 minimum stopping distance s=98.26m, initial velocity of car u=17.0 m/s final…
Q: SITUATION 7: A factory worker pushes a 30-kg crate a distance of 4.5m along a level floor at…
A: Given data: Mass of crate (m) = 30 kg Distance (d) = 4.5 m Velocity is constant. Coefficient of…
Q: The diagram below shows the potential energy of a particle as a function of position. In five…
A:
Q: Describe the energy transformations that occur when a roller coaster car is pushed by a compressed…
A: We are given a roller coaster car which is released from a compressed spring. The whole track is…
Q: What information can you use to estimate the peak power output humans are capable of, and how could…
A: How Peak Power Information Can Improve Athletic Performance For sports that require bursts of power,…
Q: Consider the constant force: F = {-50, -30, 40}N. What is the work done by this force on a…
A:
Q: Question 9) During a board game called Rat TrapO, mechanical contraptions are activated in a…
A: Recall U=mgh KE=1/2mv2 by conservation of energy.
Q: (a) At a certain instant, a particle-like object is acted on by a force F = (5.20 N)? – (1.90 N) +…
A: Given data The force acted on the particle is given as F→=5.20 Ni^-1.90 Nj^+7.80 Nk^. The velocity…
Q: An object moves along a straight line path from (0,0) to the point (3,3) under the action of a force…
A: Given Data: The force vector is: F⇀=4 N/myi^+4 N/mxj^ The position vector of the object at initial…
Q: An engineer is trying to determine the mass of a student who will barely touch the water when…
A: Let x denotes the change in the cord’s length, l denotes the natural length of the cord, h denotes…
Q: The object was pushed up to speed v over a frictionless comb plane with an inclination of 30…
A:
Q: A 5.58 kg object falls freely (ignore air resistance), after being dropped from rest. Determine the…
A: Solution:Given:m = mass of falling object = 5.58 kgg = gravitational acceleration = 9.81 m/s2There…
Q: (True or False) The work done by the net force equals the change in potential energy. (True or…
A: SOlution: Apply the law of conservation of energy to answer the true and false statements.
Q: Ffr = 20 N Fapp 200N %D
A: Given, Fapp=200N Ff=20N The net force is in the forward direction (towards Right)=200-20 Net…
Q: Is it possible that the work done by a force is negative? Give an example.
A: Yes it is possible for work done by a force to be negative.If the displacement happened in the…
Q: A 29 kg bear slides, from rest, 13 m down a lodgepole pine tree, moving with a speed of 7.0 m/s just…
A:
Q: Consider the skateboarder in the Figure. If she has a mass of 55 kg, an initial velocity of 20 m/s,…
A: Mass = 55 kg Speed at bottom = 20 m/s Speed at top = 12 m/s Height = 5 m
Q: If a force is conservative, we can define a potential energy for it. Group of answer choices True…
A:
Step by step
Solved in 2 steps
- (a) At a certain instant, a particle-like object is acted on by a force F = (4.70 N )î – (1.20 N )ƒ + (8.00 N )k while the object's velocity is v = - (3.30 m/s )i + (3.10 m/s )k. What is the instantaneous rate at which the force does work on the object? (b) At some other time, the velocity consists of only a y component. If the force is unchanged, and the instantaneous power is -17.0 W, what is the velocity of the object just then? (Give your answer without a unit vector.) (a) Number Units (b) Number UnitsA small boat is crossing a pond on a windy day. During some interval of time, the boat undergoes the given displacement Ar: Ař = (3.50 m)i + (2.85 m)ĵ During the same interval of time, the wind exerts the given force F on the boat: F = (260 N) – (135 N)Ĵ (a) What is the total work done on the boat by the wind over this period of time? (b) What is the angle between the direction of the wind force and the direction of the boat's motion during this time interval?A baby is free to move on a horizontal frictionless table and is attracted to the origin by a mysterious force with magnitude F(r) = ar+Br². (i) Find the potential energy function associated with the mysterious force. (ii) If the baby is released from rest at the location (r, 0) = (a, π/4), what will be his speed when he reaches the origin? Law Application a X
- A roller coaster car travels with a speed of 2.29 m/s at point A, located 10.7m above the ground. Calculate how fast the roller coaster is moving when it reaches point D, 10.7m below point A. Assume the roller coaster is ideal and loses no energy to friction.A particle is acted on by the constant force F = (8.00î + 1.00ĵ) N as it moves from position O to C along several different paths shown in the figure below. Determine the work done on the object by the force as the object moves from position O to C along the following paths. (Include the sign of the values in your answers.) (a) path OAC J(b) path OBC J(c) path OC J(d) From the above, we may conclude that the given force is which of the following? not a conservative force There is not enough information to tell. a conservative forceA 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) *)