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 64 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
YES! Correct, THANKS for helping me on my review

atrochim

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Tree species richness in North America is correlated with evapotranspiration rate. Tree species richness in North America is correlated with evapotranspiration rate.
Map of Mars from Hubble Space Telescope as seen near the 1999 opposition. (North top) Map of Mars from Hubble Space Telescope as seen near the 1999 opposition. (North top)
Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent
Arctic Oscillation and North Atlantic Oscillation Arctic Oscillation and North Atlantic Oscillation
Work of Running Water Work of Running Water
Two radio antennas are 130 m apart on a north-south line. The two antennas radiate in phase at ... Two radio antennas are 130 m apart on a north-south line. The two antennas radiate in phase at ...
Video: Introduction to Cystic Fibrosis

For a complete list of videos, visit our video library