### Calculate the potential energy for each ball on each ramp

Assignment Help Physics
##### Reference no: EM13870295

Potential and Kinetic Energy

Part I - Answer the following questions while in the Phase 5 lab environment.

Section 1 - From the left of the screen to the right, the red balls have a center of mass placed at 20 feet, 15 feet, and 10 feet high respectively.

1. Suppose each red ball weighs 20 lbs. Find the potential energy (PE) for each ball on each ramp. In this lab mass is given in pounds and height is in feet, so use 32.2 ft/sec2 as the gravitational constant. Your answer will be in foot-pounds since US units are being used.

PE = m g h where g = 32.2 ft/sec2

Ramp 1: 12880

Ramp 2: 9660

Ramp 3: 6440

2. Predict the maximum speed (velocity) of each ball on each ramp. How would this speed change if each ball's mass was doubled? ASSUMPTION: assume there is no friction and that all the potential energy you calculated in question 1 is transformed into kinetic energy - PE = KE. Use the following equation.

KE= 1/2 m v2
You want to calculate v maximum speed
v = [KE/ 1/2 m]1/2

This means divide the KE by half the mass and then take the square root.

Section 2 (Each of the green balls has a center of mass placed at 20 feet high). While each ramp looks identical, each ramp has a different amount of friction.

3. Which ramp has the greatest friction?

4. Suppose each green ball weighs 10 lbs. Assuming there is no friction, calculate the potential energy for each ball on each ramp.

5. Again assuming there is no friction; predict the maximum speed of the ball on each ramp. On which ramp does the ball come closest to achieving this max speed?

Part II - For the following questions, provide your response in short answer format (2-3 sentences each). Use this Phase's activities and resources to assist you in answering:

6. What is Potential Energy (PE)? Give examples from the lab.

7. What is Kinetic Energy (KE)? Give examples from the lab.

8. What is Inertia?

9. What is Gravity? How is it a type of potential energy?

10. What is Mass and how does it affect energy?

11. How do Potential and Kinetic energy (gravity and mechanical force) apply to the Law of Conservation of Energy?

12. What is Friction? How does it affect energy use?

Verified Expert

#### Calculate velocity of the plane-relative to the ground

An airplane is heading due south at a speed of 580 km/h. If a wind begins blowing from the southwest at a speed of 90.0 km/h (average), calculate (a) the velocity (magnitude a

#### Calculate the instantaneous velocity of the object

The acceleration of an object as a function of time is given by a(t)=(2.77m/s3), where t is in seconds. if the object is at rest at time t=0.00s, Calculate the instantaneous v

#### What is the magnitude of tension in string at this position

A 0.20-kg object attached to the end of a string swings in a vertical circle (radius = 80 cm). At the top of the circle the speed of the object is 4.5 m/s. What is the magnitu

#### What is the mass of the sample of lead

A sample of lead has a mass of 24.00 kg and a density of 1.130 104 kg/m3 at 0°C. (Suppose the average linear expansion coefficient for lead is 2.900 10-5(°C1).) What is the ma

#### Rafter by gripping the rafter with the thumb of each hand

In 1915, Henry Sincosky of Philadelphia suspended himself from a rafter by gripping the rafter with the thumb of each hand on one side and the fingers on the opposite side. Si

#### What is the smallest number of whole logs

What is the smallest number of whole logs (p = 725 kg/m3, radius = 0.0558 m, length = 3.20 m) that can be used to build a raft that will carry four people, each of whom has

#### The electron is released from rest at point b

Points A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the

#### What is the temperature t of the concorde''s skin in flight

Heat is extracted from a certain quantity of steam at 100 degrees celsius. Thus the steam changes into ice at 0 degrees celsius. If this energy were used to accelerate the ice

### Write a Review #### Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd