My two kids (Tim and Ellie) are on a Raft in a lake initially at rest and they jump off of the opposite sides at the same time. Tim has a mass of 65 kg, and jumps off the left side at a velocity of 1.2 m/s. Ellie has a mass of 45 kg, and jumps off the right side at a velocity of 1.8 m/s. A. Which way will the raft travel after they both jump off? (Neglect friction) Justify your answer using words OR calculations OR both. B. If the raft has a mass of {54} kg, how fast will it be moving after my kids jump? (Hint: Initial total momentum is zero. After, you have three objects with the same total momentum as before) C. Both kids push off for 0.5 seconds during their jump. Pick ONE kid, and calculate how much force they exert on the raft

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)...
icon
Related questions
Topic Video
Question
  1. My two kids (Tim and Ellie) are on a Raft in a lake initially at rest and they jump off of the opposite sides at the same time.  Tim has a mass of 65 kg, and jumps off the left side at a velocity of 1.2 m/s.  Ellie has a mass of 45 kg, and jumps off the right side at a velocity of 1.8 m/s.  

 

A. Which way will the raft travel after they both jump off?  (Neglect friction)  Justify your answer using words OR calculations OR both.

 

B. If the raft has a mass of {54} kg, how fast will it be moving after my kids jump? (Hint: Initial total momentum is zero.  After, you have three objects with the same total momentum as before)

 

C. Both kids push off for 0.5 seconds during their jump.  Pick ONE kid, and calculate how much force they exert on the raft.

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Momentum
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON