Solution Found!

Physics / College Physics 1 / Chapter 8 / Problem 45

College Physics | 1st Edition | ISBN: 9781938168000 | Authors: Paul Peter Urone, Roger Hinrichs

Change Question

Solved: Two identical pucks collide on an air hockey

Chapter 8, Problem 45

(choose chapter or problem)

Get Unlimited Answers

QUESTION:

Problem 45PE

Two identical pucks collide on an air hockey table. One puck was originally at rest. (a) If the incoming puck has a speed of 6.00 m/s and scatters to an angle of 30.0º ,what is the velocity (magnitude and direction) of the second puck? (You may use the result that θ1 − θ2 = 90º for elastic collisions of objects that have identical masses.) (b) Confirm that the collision is elastic.

Questions & Answers

QUESTION:

Problem 45PE

Two identical pucks collide on an air hockey table. One puck was originally at rest. (a) If the incoming puck has a speed of 6.00 m/s and scatters to an angle of 30.0º ,what is the velocity (magnitude and direction) of the second puck? (You may use the result that θ1 − θ2 = 90º for elastic collisions of objects that have identical masses.) (b) Confirm that the collision is elastic.

ANSWER:

Part (a)

Step 1 of 7:

The two identical pucks on air hockey table collide each other. Assume that one puck initially at rest. After the collision, the first puck has the velocity 6.00 m/s and scatters at an angle. We are going to find the velocity of the second puck. Consider the collision is elastic and the objects have the same mass.

The mass of the pucks = $m \ equals \ m sub 1 \ equals \ m sub 2$

The initial velocity of the first puck $v sub 1 \ equals \ 6.00 \ m times s super minus 1$

The angle of the first puck $theta sub 1 \ equals \ 30$ °

The angle of the second puck is given by the relation

$theta sub 1 \ minus theta sub 2 \ equals \ 90$ °

Therefore

°°

The angle of the second puck $theta sub 2 \ equals \ minus 60$ °

Study Tools You Might Need

Chapter: 2 Problem: 70P

Introductory Chemistry 5
Perform each conversion. (a) 155.5 cm to meters (b) 2491.6 g to kilograms (c) 248 cm to millimeters (d) 6781 mL to liters

Chapter: 17 Problem: 3

College Physics 1
Problem 3CQ Six members of a synchronized swim team wear earplugs to protect themselves against water pressure at depths, but they can still hear the music and perform the combinations in the water perfectly. One day, they were asked to leave the pool so the dive team could practice a few dives, an

Chapter: 9 Problem: 24P

Principles of General Chemistry 2
Define bond energy using the \(\mathrm{H}-\mathrm{Cl}\) bond as an example. When this bond breaks, is energy absorbed or released? Is the accompanying \(\Delta H\) value positive or negative? How do the magnitude and sign of this \(\Delta H\) value relate to the value that accompanies \(\mathrm{H}-\m

Chapter: 9 Problem: 47P

Chemistry 11
The following Lewis structures for (a) HCN, (b) \(\mathrm{C_2H_2}\), (c) \(\mathrm{SnO_2}\), (d) \(\mathrm{BF_3}\) (e) HOF, (f) HCOF. and (g) \(\mathrm{NF_3}\) are incorrect. Explain what is wrong with each one and give a correct structure for the molecule. (Relative positions of atoms are shown corr

Chapter: 17 Problem: 29

Anatomy & Physiology 1
The function of the placental hormone human placental lactogen (hPL) is to ________. a. prepare the breasts for lactation b. nourish the placenta c. regulate the menstrual cycle d. all of the above

Chapter: 10 Problem: 1

Campbell Biology 10
The light reactions of photosynthesis supply the Calvin cycle with a. light energy. b. CO2 and ATP. c. H2O and NADPH. d. ATP and NADPH.

Chapter: 4 Problem: 1

Introduction to Business
After seeing a Quiznos franchise recruitment infomercial to recruit franchisees, you are tempted to apply to open your own Quiznos sub shop. However, your research on the company turns up some disturbing information. Many current franchisees are unhappy with the companys management and practices, amo

Chapter: 8 Problem: 55

Biochemistry 9
List two classes of compounds derived from arachidonic acid. Suggest some reasons for the amount of biomedical research devoted to these compounds.

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

×

Register

Sign up for access to all content on our site!

Or login if you already have an account