Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 7: Q9Q (page 170)

A boy stands on the back of a rowboat and dives into the water. What happens to the boat as he leaves it? Explain.

Short Answer

Expert verified

The boat will move in the forward direction.

Step by step solution

01

Understanding conservation of momentum

The conservation of momentum principle states that the total momentum of an isolated system remains conserved. In this problem, we will apply the law of conservation of momentum, considering the boy and rowboat as a system.

02

Determine the direction of the boat

The initial momentum of the boy and rowboat is zero because they are at rest. When the boy standing on the back of the boat dives into the water, he gains some momentum in the direction of the dive. The boat will move in the forward direction, opposite to the direction of the boy, with the same momentum in order to conserve the momentum of the entire system since the total momentum has to be zero. Thus, the boat move will move forward.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A 0.060-kg tennis ball, moving with a speed of 5.50 m/s has a head-on collision with a 0.090-kg ball initially moving in the same direction at a speed of 3.00 m/s. Assuming a perfectly elastic collision, determine the speed and direction of each ball after the collision?

Car A hits car B (initially at rest and of equal mass) from behind while going\(38\;{\rm{m/s}}\). Immediately after the collision, car B moves forward at\(15\;{\rm{m/s}}\)and car A is at rest. What fraction of the initial kinetic energy is lost in the collision?

Repeat Problem 59 assuming the body bends at the hip joint by about 15°. Estimate, using Fig. 7–27 as a model.

Describe a collision in which all kinetic energy is lost.

A 12-kg hammer strikes a nail at a velocity of 7.5 m/s and comes to rest in a time interval of 8.0 ms.

(a) What is the impulse given to the nail?

(b) What is the average force acting on the nail?
See all solutions

Recommended explanations on Physics Textbooks

Fields in Physics

Read Explanation

Energy Physics

Read Explanation

Solid State Physics

Read Explanation

Quantum Physics

Read Explanation

Space Physics

Read Explanation

Rotational Dynamics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free