The graph above shows the potential energy U of a system as one object in the system moves along the ¤-axis and the rest of the system does not move. Six evenly-spaced points along the x-axis are labeled. At point H, the object is moving in the positive x-direction and the mechanical energy of the system is 5.0 J. As the object moves, no energy enters or leaves the system. Which of the following describes the magnitude of the momentum of the object in the first two straight-line 7. segments shown in the graph as the object moves from point H to point J ?

The graph above shows the potential energy U of a system as one object in the system moves along the ¤-axis and the rest of the system does not move. Six evenly-spaced points along the x-axis are labeled. At point H, the object is moving in the positive x-direction and the mechanical energy of the system is 5.0 J. As the object moves, no energy enters or leaves the system. Which of the following describes the magnitude of the momentum of the object in the first two straight-line 7. segments shown in the graph as the object moves from point H to point J ?

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 space probe of mass 86 kg is moving with an initial speed of 10 m/s in the outer space. A constant net force F net = N acts on the probe through a displacement Ar = m. Find the initial kinetic energy of the probe. K; = J. What is the total work done on the probe? W = J. Find the change in the kinetic energy of the probe. AK = J. Find the final kinetic energy of the probe. Kf = J. Find the speed of the probe when its kinetic energy is equal to 4097 J Vf = m/s.
A physics student monitors the speed and kinetic energy of a 0.36 kg traveling object that moves in a straight line. At a time of t = 1.00 s, the object is traveling with a speed of 5.0 m/s and at a time of t = 4.00 s, the object has a kinetic energy of 24 J. Determine the following. (a) Calculate the kinetic energy of the object (in J) at t = 1.00 s J (b) Calculate the speed of the object (in m/s) at t = 4.00 s. m/s (c) Calculate the work done on the object (in J) between t = 1.00 s and 4.00 s. J (d) Calculate the distance (in m) that the object moves between t = 1.00 s and 4.00 s. m (e) Calculate the average force (in N) exertec on the object between t = 1.00 s and 4.00 s. N
Two blocks (A of mass 1.47 kg and B of mass 2.94 kg) resting on a frictionless horizontal table are pressed together against an ideal massless spring that stores 89.2 J of elastic potential energy. The blocks are not attached to the spring and are free to move free of it once they are released from rest. 1.The maximum speed achieved by block A is? 2.The maximum speed achieved by block B is?
A ten wheeler truck with a mass of 1.14x104kg is moving at 55 km/hr at the moment that the traffic light changes from green to red. If it takes the truck 25 s to stop find (a) the initial kinetic energy of the truck, (b) the coefficient of friction between the tires and the road.
Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an archer pulls the bow back 48 cm and holds it in position with a force of 163 N. If the mass of the arrow is 51 g and the "spring" is massless, what is the speed of the arrow immediately after it leaves the bow? v=v= m/s A boy throws a ball of mass 0.2 kg straight upward with an initial speed of 22 m/s When the ball returns to the boy, its speed is 17 m/s How much work does air resistance do on the ball during its flight? W=W= J (give the absolute value, rounded to one decimal place)
An airplane of mass 1.30 x 104 kg is moving at 66.0 m/s. The pilot then increases the engine's thrust to 7.90 × 104 N. The resistive force exerted by air on the airplane has a magnitude of 6.00 x 104 N. (a) Is the work done by the engine on the airplane equal to the change of the airplane's kinetic energy after it travels through some distance through the air? yes no (b) Is the mechanical energy conserved? Explain your answer. (c) Find the speed of the airplane after it has traveled 500 m. Assume that the airplane is in level flight throughout the mqtion. m/s
A father racing his son has 1/2 the kinetic energy of the son, who has 1/2 the mass of the father. The father speeds up by 1.1 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son? (a) Number i Units (b) Number i Units
Just a little something on momentum and kinetic energy. As a reminder, momentum is a vector and: p = mv K = 1/2 mv2 = 1/2 pv = p2/2m In terms of the dot product: v2 = v⋅v, p2 = p⋅p, and pv = p⋅v. Unlike speed vs. velocity, but like all other vectors, momentum may refer to the magnitude of the momentum vector. Now, answers the following questions: 1) A 7-kg particle goes 96 m/s. Calculate its momentum in kg*m/s. (This requires an exact answer.) 2) A 7-kg particle's momentum is (392, 61) kg*m/s. Calculate its kinetic energy. 3) A pebble and a grapefruit have the same momentum. Which has the greater kinetic energy?
Part A Compute the kinetic energy, in joules, of an automobile of mass 1650 kg traveling at a speed of 56.0 km/h. Submit Correct Part B Previous Answers By what factor does the kinetic energy change if the speed is doubled? Submit | ΑΣΦ Request Answer BMW ?
Pushing the cart adds 40 J to the system, and 12 J of energy is lost. The change in energy in the system is 153 J. What was the additional amount of work added to the system? Eƒ = E; + AW + AQ
Part 1. A 3 kg package of tamales (see the figure below) slides along a floor with speed v1 = 5 m/s. It then runs into and compresses a spring, until the package momentarily stops. Its path to the initiallyrelaxed spring is frictionless, but as it compresses the spring, a kinetic frictional force from the floor, of magnitude 15 N, acts on the package. If k = 8 000 N/m, by what distance d is the spring compressed when the package stops? What makes up the system in this problem and state a reasonable assumption about this system? Consider the following for a rotational motion:r = 6 m, θ = 0.5t2, where t is in seconds and θ is in radians.Find the magnitudes of (a) tangential acceleration at t = 4 s, and (b) radial acceleration at t = 4 s.[1+1]
Which of the following statements is true? A) Work done by weight is always zero (B Work is a Scalar Quantity c) Work is positive when the direction of the Force and Displacement are opposite to one another (D Work done is equal to the change in momentum