« previous next »

Author Question: The force of a boxer's punch is greater when it hits a A) small punching bag. B) heavy punching ... (Read 79 times)

fox

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
The force of a boxer's punch is greater when it hits a
 
  A) small punching bag.
  B) heavy punching bag.
  C) both forces would be the same for the same effort

Question 2

If you drop a pencil while riding on a smooth riding bus, why does the pencil land at the same place it would if the bus were at rest?
 
  What will be an ideal response?


juiceman1987

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: In accord with Newton's first law, since in both cases there is no horizontal force on the dropped pencil, no change of velocity occurs horizontally. The dropped pencil in the moving bus simply keeps up with you as you move, not changing its velocity in the horizontal direction.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Comparison of small subunit rRNA gene sequences of vertebrate, invertebrate chordate, and invertebra Comparison of small subunit rRNA gene sequences of vertebrate, invertebrate chordate, and invertebra
A heavy winter coat with countershading in a mixed-breed dog A heavy winter coat with countershading in a mixed-breed dog
The small intestine. Anterior view of the abdominopelvic cavity illustrating how the three sections The small intestine. Anterior view of the abdominopelvic cavity illustrating how the three sections
Effects of Force Feeding Effects of Force Feeding
When both sides of the back have been massaged, redrape the back. With light to moderate force, use ... When both sides of the back have been massaged, redrape the back. With light to moderate force, use ...
Use small circular strokes up the ankle and leg. Use small circular strokes up the ankle and leg.
Video: Appendicitis Animation

For a complete list of videos, visit our video library