College Physics

Figure 8.12A collision taking place in a dark room is explored inExample 8.7. The incoming objectm 1 is scattered by an initiall ...

principle—Newton’s third law of motion. Matter is forcefully ejected from a system, producing an equal and opposite reaction on ...

A rocket’s acceleration depends on three major factors, consistent with the equation for acceleration of a rocket.First, the gre ...

change in momentum: conservation of momentum principle: elastic collision: impulse: inelastic collision: internal kinetic energy ...

quark: second law of motion: fundamental constituent of matter and an elementary particle physical law that states that the net ...

The faster the rocket burns its fuel, the greater its acceleration. The smaller the rocket's mass, the greater the acceleration ...

Figure 8.16A small object approaches a collision with a much more massive cube, after which its velocity has the directionθ 1. T ...

Problems & Exercises 8.1 Linear Momentum and Force 1.(a) Calculate the momentum of a 2000-kg elephant charging a hunter at a ...

which is initially motionless and has a mass of 0.350 kg. Both being soft clay, they naturally stick together. What is their fin ...

6.00 m/s, while the second player is 115 kg and has an initial velocity of –3.50 m/s. What is their velocity just after impact i ...

60.How much of a single-stage rocket that is 100,000 kg can be anything but fuel if the rocket is to have a final speed of8.00 k ...

290 CHAPTER 8 | LINEAR MOMENTUM AND COLLISIONS This content is available for free at http://cnx.org/content/col11406/1.7 ...

9 STATICS AND TORQUE Figure 9.1On a short time scale, rocks like these in Australia’s Kings Canyon are static, or motionless rel ...

something in common with a car moving at a constant velocity, because anything with a constant velocity also has an acceleration ...

Figure 9.4An ice hockey stick lying flat on ice with two equal and opposite horizontal forces applied to it. Friction is negligi ...

Figure 9.7Torque is the turning or twisting effectiveness of a force, illustrated here for door rotation on its hinges (as viewe ...

find or visualizer⊥ than to find bothrandθ. In such cases, it may be more convenient to useτ=r⊥Frather thanτ=rFsinθfor torque, b ...

τ 2 = –r 2 w 2 (9.9) and third, τp = rpFp (9.10) = 0 ⋅Fp = 0. Note that a minus sign has been inserted into the second equation ...

Third, the weight of each child is distributed over an area of the seesaw, yet we treated the weights as if each force were exer ...

Figure 9.12If the pencil is displaced slightly to the side (counterclockwise), it is no longer in equilibrium. Its weight produc ...