« 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 67 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?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa Approximately 1 pound (0.45 kg) of ground elk meat formed into patties; note the relatively small fa
Commensal Bacteria in the Human Small Intestine Commensal Bacteria in the Human Small Intestine
Drag Force in a Climb Drag Force in a Climb
Guidelines for Creating Small Plates Guidelines for Creating Small Plates
Absorption in the Small Intestine Absorption in the Small Intestine
Digestion & Absorption in the Small Intestine Digestion & Absorption in the Small Intestine
Video: Effect of blood chemistry - stimuli, hyperventilation response and hypoventilation response

For a complete list of videos, visit our video library