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

Author Question: A solid uniform disk is rolling without slipping along a horizontal surface with a speed of 4.5 m/s ... (Read 99 times)

newyorker26

  • Hero Member
  • *****
  • Posts: 536
on: Jul 29, 2018
A solid uniform disk is rolling without slipping along a horizontal surface with a speed of 4.5 m/s when it starts up a ramp that makes an angle of 25 with the horizontal.
 
  What is the speed of the disk after it has rolled 3.0 m up as measured along the surface of the ramp?
  A) 4.0 m/s
  B) 1.9 m/s
  C) 2.1 m/s
  D) 6.8 m/s
  E) 8.0 m/s

Question 2

Human reaction time is usually greater than 0.10 s. If your friend holds a ruler between your fingers and releases it without warning, how far can you expect the ruler to fall before you catch it, assuming negligible air resistance?
 
  A) at least 3.0 cm
  B) at least 4.9 cm
  C) at least 6.8 cm
  D) at least 9.8 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jointhecircus

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


newyorker26

  • Member
  • Posts: 536
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Your heart beats over 36 million times a year.

Surface Features on Titan Surface Features on Titan
Surface Rupture Surface Rupture
J. M. W. Turner, Rain, Steam, and Speed—The Great Western Railway. J. M. W. Turner, Rain, Steam, and Speed—The Great Western Railway.
A rapidly vibrating needle at idle that becomes steady as engine speed is increased indicates worn ... A rapidly vibrating needle at idle that becomes steady as engine speed is increased indicates worn ...
Horizontal stroking of the abdomen. Place a hand on either side of the waist, fingers pointing away ... Horizontal stroking of the abdomen. Place a hand on either side of the waist, fingers pointing away ...
A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ... A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ...
Video: Types of disease resistance: innate defenses & immunity

For a complete list of videos, visit our video library