This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 75.0-kg halfback running north with a speed of 11.0 m/s is tackled by a 80.5-kg opponent running ... (Read 121 times)

misspop

  • Hero Member
  • *****
  • Posts: 540
on: Jul 28, 2018
A 75.0-kg halfback running north with a speed of 11.0 m/s is tackled by a 80.5-kg opponent running south at 7.5 m/s. The collision is perfectly inelastic. Compute the velocity of the two players just after the tackle.
 a. 9.2 m/s south
  b. 1.4 m/s south
  c. 1.4 m/s north
  d. 40 m/s north
  e. 9.2 m/s north

Question 2

A billiard ball is moving in the x-direction at 30.0 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm/s. As a result of the collision, the first ball moves at 50.0 cm/s, and the second ball stops. What is the change in kinetic energy of the system as a result of the collision?
 a. 0
  b. some positive value
  c. some negative value
  d. No answer above is correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

matt

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

a


misspop

  • Member
  • Posts: 540
Reply 2 on: Jul 28, 2018
:D TYSM

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Pacific Silver Fir cone debris from feeding Douglas Squirrels, North Cascades National Park Pacific Silver Fir cone debris from feeding Douglas Squirrels, North Cascades National Park
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Color enhanced X-ray showing a pacemaker implanted in the left side of the chest and the electrode w Color enhanced X-ray showing a pacemaker implanted in the left side of the chest and the electrode w
The 1993 “Rain Machine”over the North-Central U.S The 1993 “Rain Machine”over the North-Central U.S
Sources and Amounts of Oil Released into North American Marine Waters Sources and Amounts of Oil Released into North American Marine Waters
Weather Typically Associated with Cold Front (North America) Weather Typically Associated with Cold Front (North America)
Video: Skin Cancer

For a complete list of videos, visit our video library