Problem 1Q: Rank the following velocities according to the kinetic energy a particle will have with each... Problem 2Q: Figure 7-16a shows two horizontal forces that act on a block that is sliding to the right across a... Problem 3Q: Is positive or negative work done by a constant force F on a particle during a straight-line... Problem 4Q: In three situations, a briefly applied horizontal force changes the velocity of a hockey puck that... Problem 5Q: The graphs in Fig. 7-18 give the x component Fx of a force acting on a particle moving along an x... Problem 6Q: Figure 7-19 gives the x component Fx of a force that can act on a particle. If the particle begins... Problem 7Q: In Fig. 7-20, a greased pig has a choice of three frictionless slides along which to slide to the... Problem 8Q: Figure 7-21a shows four situations in which a horizontal force acts on the same block, which is... Problem 9Q: Spring A is stiffer than spring B kA kB. The spring force of which spring does more work if the... Problem 10Q: A glob of slime is launched or dropped from the edge of a cliff. Which of the graphs in Fig. 7-22... Problem 11Q: In three situations, a single force acts on a moving particle. Here are the velocities at that... Problem 12Q: Figure 7-23 shows three arrangements of a block attached to identical springs that are in their... Problem 1P: SSM A proton mass m = 1.67 1027 kg is being accelerated along a straight line at 3.6 1015 m/s2 in... Problem 2P: If a Saturn V rocket with an Apollo spacecraft attached had a combined mass of 2.9 105 kg and... Problem 3P: On August 10, 1972, a large meteorite skipped across theatmosphere above the western United States... Problem 4P: An explosion at ground level leaves a crater with a diameter that is proportional to the energy of... Problem 5P: A father racing his son has half the kinetic energy of the son, who has half the mass of the father.... Problem 6P: A bead with mass 1.8 10-2 kg is moving along a wire in the positive direction of an x axis.... Problem 7P: A 3.0 kg body is at rest on a frictionless horizontal air track when a constant horizontal force F... Problem 8P: A ice block floating in a river is pushed through a displacement d= 15 m i 12 m j along a straight... Problem 9P: The only force acting on a 2.0 kg canister that is moving in an xy plane has a magnitude of 5.0 N.... Problem 10P: A coin slides over a frictionless plane and across an xycoordinate system from the origin to a point... Problem 11P: A 12.0 N force with a fixed orientation does work on a particle as the particle moves through the... Problem 12P: A can of bolts and nuts is pushed 2.00 m along an x axis by a broom along the greasy friction-less... Problem 13P: A luge and its rider, with a total mass of 85 kg, emerge from a downhill track onto a horizontal... Problem 14P: 14 GO Figure 7-27 shows an overhead view of three horizontal forces acting on a cargo canister that... Problem 15P: GO Figure 7-28 shows three forces applied to a trunk that moves leftward by 3.00 m over a friction-... Problem 16P: GO An 8.0 kg object is moving in the positive direction of an x axis. When it passes through x = 0,... Problem 17P: SSM WWW A helicopter lifts a 72 kg astronaut 15 m vertically from the ocean by means of a cable. The... Problem 18P: a In 1975 the roof of Montreals Velodrome, witha weight of 360 kN, was lifted by 10 cm so that it... Problem 19P: GO In Fig. 7-30, a block of ice slides down a frictionless ramp at angle = 50 while an ice worker... Problem 20P: A block is sent up a frictionless ramp along which an x axis extends upward. Figure 7-31 gives the... Problem 21P: 21 SSM A cord is used to vertically lower an initially stationary block of mass M at a constant... Problem 22P: A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a... Problem 23P: In Fig. 7-32, a constant force Fa of magnitude 82.0 N is applied to a 3.00 kg shoe box at angle =... Problem 24P: GO In Fig. 7-33, a horizontal force Fa of magnitude 20.0 N is applied to a 3.0 kg psychology book as... Problem 25P: GO In Fig. 7-34, a 0.250 kg block of cheese lies on the floor of a 900 kg elevator cab that is being... Problem 26P: In Fig. 7-10, we must apply a force of magnitude 80 N to hold the block stationary at x = 2.0 cm.... Problem 27P: A spring and block are in the arrangement of Fig. 7-10. When the block is pulled out to x = 4.0 cm,... Problem 28P: During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle... Problem 29P: In the arrangement of Fig. 7-10, we gradually pull the block from x = 0 to x = 3.0 cm, where it is... Problem 30P: In Fig. 7-10a, a block of mass m lies on a horizontal frictionless surface and is attached to one... Problem 31P: SSM WWW The only force acting on a 2.0 kg body as it moves along a positive x axis has... Problem 32P: Figure 7-37 gives spring force Fx versus position x for the spring-block arrangement of Fig. 7-10.... Problem 33P: GO The block in Fig. 7-10a lies on a horizontal frictionless surface, and the spring constant is 50... Problem 34P: ILW A 10 kg brick moves along an xaxis. Its acceleration as a function of its position is shown in... Problem 35P: SSM WWW The force on a particle is directed along an xaxis and given by F = F0x/x0 1. Find the work... Problem 36P: GO A 5.0 kg block moves in a straight line on a horizontal friction- less surface under the... Problem 37P: GO Figure 7-40 gives the acceleration of a 2.00 kg particle as an applied force Fa moves it from... Problem 38P: A 1.5 kg block is initially at rest on a horizontal frictionless surface when a horizontal force... Problem 39P: GO A force F= cx3.00x2iacts on a particle as the particle moves along an xaxis, with F in newtons,... Problem 40P: A can of sardines is made to move along an xaxis from x= 0.25 m to x= 1.25 m by a force with a... Problem 41P: A single force acts on a 3.0 kg particle-like object whose position is given by x = 3.0t 4.0t2 ... Problem 42P: GO Figure 7-41 shows a cord attached to a cart that can slide along a frictionless horizontal rail... Problem 43P: SSM A force of 5.0 N acts on a 15 kg body initially at rest. Compute the work done by the force in a... Problem 44P: A skier is pulled by a towrope up a frictionless ski slope that makes an angle of 12 with the... Problem 45P: SSM ILW A 100 kg block is pulled at a constant speed of 5.0 m/s across a horizontal floor by an... Problem 46P: The loaded cab of an elevator has a mass of 3.0 103 kg and moves 210 m up the shaft in 23 s at... Problem 47P: A machine carries a 4.0 kg package from an initial position of di= 0.50 m i 0.75 m j 0.20 m k at t... Problem 48P: A 0.30 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal... Problem 49P Problem 50P: a At a certain instant, a particle-like object is acted on by aforce F= 4.0 N i 2.0 N j 9.0 N k... Problem 51P: A force F= 3.00 N i 7.00 N j 7.00 N k acts on a2.0 kg mobile object that moves from an initial... Problem 52P: A funny car accelerates from rest through a measured track distance in time T with the engine... Problem 53P: Figure 7-42 shows a cold package of hot dogs sliding rightward across a frictionless floor through a... Problem 54P: GO The only force acting on a 2.0 kg body as the body moves along an x axis varies as shown in Fig.... Problem 55P: SSM A horse pulls a cart with a force of 40 lb at an angle of 30 above the horizontal and moves... Problem 56P: An initially stationary 2.0 kg object accelerates horizontally and uniformly to a speed of 10 m/s in... Problem 57P: A 230 kg crate hangs from the end of a rope of length L = 12.0 m. You push horizontally on the crate... Problem 58P: To pull a 50 kg crate across a horizontal frictionless floor, a worker applies a force of 210 N,... Problem 59P: A force Fa is applied to a bead as the bead is moved along a straight wire through displacement 5.0... Problem 60P: A frightened child is restrained by her mother as the child slides down a frictionless playground... Problem 61P: How much work is done by a force F= 2x N i 3 N j, with x in meters, that moves a particle from a... Problem 62P: A 250 g block is dropped onto a relaxed vertical spring that has a spring constant of k =2.5 N/cm... Problem 63P: 63 SSM To push a 25.0 kg crate up a frictionless incline, angled at 25.0 to the horizontal, a worker... Problem 64P: Boxes are transported from one location to another in a warehouse by means of a conveyor belt that... Problem 65P: In Fig. 7-47, a cord runs around two massless, frictionless pulleys. A canister with mass m = 20 kg... Problem 66P: If a car of mass 1200 kg is moving along a highway at 120 km/h, what is the cars kinetic energy as... Problem 67P: SSM A spring with a pointer attached is hanging next to a scale marked in millimeters. Three... Problem 68P: An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of... Problem 69P: If a ski lift raises 100 passengers averaging 660 N in weight to a height of 150 m in 60.0 s, at... Problem 70P: A force F= 4.0 N i cj acts on a particle as the particle goes through displacement d= 3.0 m 2.0 m... Problem 71P: A constant force of magnitude 10 N makes an angle of 150 measured counterclockwise with the positive... Problem 72P: In Fig. 7-49a, a 2.0 N force is applied to a 4.0 kg block at a downward angle as the block moves... Problem 73P: A force F in the positive direction of an x axis acts on an object moving along the axis. If the... Problem 74P: A particle moves along a straight path through displacement d= 8 m i cj while force F= 2 N i 4 N j... Problem 75P: SSM What is the power of the force required to move a 4500 kg elevator cab with a load of 1800 kg... Problem 76P: A 45 kg block of ice slides down a frictionless incline 1.5 m long and 0.91 m high. A worker pushes... Problem 77P: As a particle moves along an x axis, a force in the positive direction of the axis acts on it.... Problem 78P: A CD case slides along a floor in the positive direction of an x axis while an applied force Fa acts... Problem 79P: SSM A 2.0 kg lunchbox is sent sliding over a frictionless surface, in the positive direction of an x... Problem 80P: Numerical integration. A breadbox is made to move along an jcaxis from x = 0.15 m to x = 1.20 m by a... Problem 81P: In the block-spring arrangement of Fig. 7-10, the blocks mass is 4.00 kg and the spring constant is... Problem 82P: A 4.00 kg block is pulled up a frictionless inclined plane by a50.0 N force that is parallel to the... Problem 83P: A spring with a spring constant of 18.0 N/cm has a cage attached to its free end. a How much work... Problem 84P: A force F= 2.00 i 9.00 j 5.30 k N acts on a 2.90 kg object that moves in time interval 2.10 s from... Problem 85P: At t = 0, force F= 5.00 i 5.00 j 4.00 k N begins to act on a 2.00 kg particle with an initial... format_list_bulleted