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

Author Question: A disk and a sphere are released simultaneously at the top of an inclined plane. They roll down ... (Read 39 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
on: Jul 29, 2018
A disk and a sphere are released simultaneously at the top of an inclined plane. They roll down without slipping. Which will reach the bottom first?
 
  A) The one of smallest diameter.
  B) The one of greatest mass.
  C) The disk.
  D) The sphere.
  E) They will reach the bottom at the same time.

Question 2

A marble that is rolling without slipping approaches a hill traveling at 8.50 m/s.
 
  How high vertically will the marble go (a) if the hill is rough enough to prevent any slipping, and (b) if the hill is perfectly smooth? (c) Why does the marble rise to different heights when it had the same initial kinetic energy in both cases?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

(a) 5.16 m, (b) 3.69 m, (c) With friction, all the kinetic energy is converted to gravitational potential energy. Without friction, only the translational kinetic energy is converted to potential energy.


craiczarry

  • Member
  • Posts: 527
Reply 2 on: Jul 29, 2018
:D TYSM

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

The biconcave disk shape of erythrocytes (red blood cells). The biconcave disk shape of erythrocytes (red blood cells).
Formation of an Accretion Disk Formation of an Accretion Disk
Amount of Energy Released by Earthquakes of Different Magnitudes Amount of Energy Released by Earthquakes of Different Magnitudes
Storage devices (A) External hard-disk drive (B) USB drive (C) Memory card (D) Optical disc (DVD) ... Storage devices (A) External hard-disk drive (B) USB drive (C) Memory card (D) Optical disc (DVD) ...
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library