50. Go John's mass is 86 kg, and Barbara's is 55 kg. He is standing on thex axis at x, = +9.0 m, while she is standing on the x axis at xg = +2.0 m.They switch positions. How far and in which direction does their centerof mass move as a result of the switch?

Given: The John’s mass (mj) = 86 kg. The Barbara’s mass (mb) = 55 kg. Position of John on x axis…

Answered: 50. Go John's mass is 86 kg, and…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 35P

See similar textbooks

Similar questions

To get up on the roof, a person (mass 70.0 kg) places 6.00-m aluminum ladder (mass 10.0 kg) against the house on a concrete pad with the base of ladder 2.00 m from the house. The ladder rests against a plastic rain gutter, which we can assume to frictionless. The center of ladder is 2.00 m from the bottom. The person is standing 3.00 m from the bottom. Find the normal reaction and friction forces on the ladder at its base.
A space probe, initially at rest, undergoes an internal mechanical malfunction and breaks into three pieces. One piece of mass ml = 48.0 kg travels in the positive x-direction at 12.0 m/s, and a second piece of mass m2 = 62.0 kg travels in the xy-plane at an angle of 105 at 15.0 m/s. The third piece has mass m3 = 112 kg. (a) Sketch a diagram of the situation, labeling the different masses and their velocities, (b) Write the general expression for conservation of momentum in the x- and y-directions in terms of m1, m2, m3, v1, v2 and v3 and the sines and cosines of the angles, taking to be the unknown angle, (c) Calculate the final x-components of the momenta of m1 and m2. (d) Calculate the final y-components of the momenta of m1 and m2. (e) Substitute the known momentum components into the general equations of momentum for the x- and y-directions, along with the known mass m3. (f) Solve the two momentum equations for v3 cos and v3 sin , respectively, and use the identity cos2 + sin2 = 1 to obtain v3. (g) Divide the equation for v3 sin by that for v3 cos to obtain tan , then obtain the angle by taking the inverse tangent of both sides, (h) In general, would three such pieces necessarily have to move in the same plane? Why?
Three skydivers are plummeting earthward. They are initially holding onto each other, but then push apart. Two skydivers of mass 70 and 80 kg gain horizontal velocities of 1.2 m/s north and 1.4 m/s southeast, respectively. What is the horizontal velocity of the third skydiver, whose mass is 55 kg?
John’s mass is 83.6 kg, and Barbara’s is 52.6 kg. He is standing on the x axis at xJ = +10.2 m, while she is standing on the x axis at xB = +4.66 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?
Jerry's mass is 80 kg, and Barbie's is 45 kg. He is standing on the x-axis at x j = +10.0 m, while she is standing on the x-axis at xa = +3.5 m. They switch positions. What is their center of mass after they switched positions?
Suppose that m1 = 5.0 kg and x1 = 2.0 m, while m2 = 12.0 kg and x2 = 6.0 m, where is the center of mass located?
Three people of roughly equal masses on a lightweight banana boat sit along the x axis at positions xA = 1.0 m, xB = 5.0 m, and xc = 6.0 m, measured from the left-hand end. Find the position of the cm. Ignore the boat’s mass.
During a spacewalk, a 118 kg astronaut (including her spacesuit) is at rest and holding a 3.5 kg wrench. If she throws the wrench with speed 12 m/s, then what will be her recoil speed?
Two small-sized objects are placed on a uniform9.00/rmkg plastic beam 3.00 long,rmm . Assume that m1= 8.20kg and kg =7.45kg Find the location of the center of mass of this system by setting x = 0 at the right end of the beam.
Spectators watch a bicycle stunt rider travel off the end of a60.0° ramp, rise to the top of his trajectory and, at that instant,suddenly push his bike away from him so that he falls verticallystraight down, reaching the ground 0.550 s later. Howfar from the rider does the bicycle land if the rider has massM = 72.0 kg and the bike has mass m = 12.0 kg? Neglect airresistance and assume the ground is level.
Two ice skaters, with masses of 75 kg and 55 kg, stand facing each other on a 15-m-wide frozen river. The skaters push off against each other, glide backward straight toward the river’s edges, and reach the edges at exactly the same time. How far did the 75 kg skater glide?
An astronaut with a mass of 85 kg is outside a space capsule when the tether line breaks. To return to the capsule, the astronaut throws a 2.0 kg wrench away from the capsule at a speed of 14 m/s. At what speed does the astronaut move towards the capsule?

SEE MORE QUESTIONS

Recommended textbooks for you

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Classical Dynamics of Particles and Systems

Physics

ISBN:

9780534408961

Author:

Stephen T. Thornton, Jerry B. Marion

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Classical Dynamics of Particles and Systems

Physics

ISBN:

9780534408961

Author:

Stephen T. Thornton, Jerry B. Marion

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Physics for Scientists and Engineers, Technology …

Physics

ISBN:

9781305116399

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

50. Go John's mass is 86 kg, and Barbara's is 55 kg. He is standing on the x axis at x, = +9.0 m, while she is standing on the x axis at xg = +2.0 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?