v= 30. m/s 1. A projectile is launched horizontally at a speed of 30 meters per second from a platform above the ground. The projectile impacts the ground at a distance of 9 meters from the base of the platform. Ignore air resistance. Impact location a. Calculate the height of the platform from which the projectile was launched. b. Explain the physics concepts used to solve for the height of the platform. c. If the projectile was launched off of the platform at 50 m/s, would the time that the projectile is in the air increase, decrease, or not change? Explain your response. 2. In the diagram below, a stationary solid block of mass 0.15 kg slides down one ramp from point A and up the next ramp to point C, arriving with a velocity of 5m/s. 2.0 m 0.50m a. Write an equation that represents the motion of the block from point A to point C. Your equation should use letters & symbols from the problem, and fundamental constants, such as g. b. Determine the amount of energy that is dissipated (or "lost") due to friction between the ramp and the block. c. Explain how your solution demonstrates the application of the conservation of energy. 3. A hoop and a solid sphere are released from the top of a ramp at the same time. The objects have the same radius, but the mass of the sphere is 5M, while the hoop is M. The moment of inertia for the sphere is 2/5MR? and the hoop is MR?. a. Which object, if either, will reach the end of the ramp first? Explain your answer. b. Which object, if either, will have a greater rotational kinetic energy at the bottom of the ramp? Explain your answer. 4. A cart with a mass of 5 kg begins at rest at the top of a hill with height 0.75 meters. The cart is compressed a distance of 0.15 m against a spring with a spring constant of 200 N/m. The spring is released, causing the cart to shoot forward and then down the hill. a. Complete the qualitative energy bar chart below for the earth-cart-spring system for the time between when the cart has compressed the spring to when it has rolled down the ramp. PEG PEs KEr KER PEG PEs KET KER AENT FOR b. Explain the reasoning used to complete the energy bar chart. c. Calculate the speed of the cart at the bottom of the hill. Ignore any energy losses due to friction. Do not consider the rotational energy of the wheels in your analysis. d. If the rotational energy of the wheels were included, would the carts' speed at the bottom of the hill be greater than, less than or the same as your calculated value above? Explain your response.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question
100%

Could i get some help onthese physics word problems ?  :)

v = 30. m/s
1. A projectile is launched horizontally at a speed of
30 meters per second from a platform above the
ground. The projectile impacts the ground at a
distance of 9 meters from the base of the platform.
Ignore air resistance.
Impact
location
a. Calculate the height of the platform from which
the projectile was launched.
b. Explain the physics concepts used to solve for
the height of the platform.
c. If the projectile was launched off of the platform
at 50 m/s, would the time that the projectile is in the air increase, decrease, or not change?
Explain your response.
2. In the diagram below, a stationary solid block of mass 0.15 kg slides down one ramp from point
A and up the next ramp to point C, arriving with a velocity of 5m/s.
0.15 kg
2.0 m
0.50 m
a. Write an equation that represents the motion of the block from point A to point C. Your
equation should use letters & symbols from the problem, and fundamental constants, such
as g.
b. Determine the amount of energy that is dissipated (or "lost") due to friction between the
ramp and the block.
c. Explain how your solution demonstrates the application of the conservation of energy.
3. A hoop and a solid sphere are released from the top of a ramp at
the same time. The objects have the same radius,
but the mass of the sphere is 5M, while the hoop is M. The moment
of inertia for the sphere is 2/5MR? and the hoop is MR?.
a. Which object, if either, will reach the end of the ramp first?
Explain your answer.
b. Which object, if either, will have a greater rotational kinetic
energy at the bottom of the ramp? Explain your answer.
4. A cart with a mass of 5 kg begins at rest at the top of a hill with height 0.75 meters. The cart is
compressed a distance of 0.15 m against a spring with a spring constant of 200 N/m. The spring is
released, causing the cart to shoot forward and then down the hill.
a. Complete the qualitative energy bar chart below for the earth-cart-spring system for the time
between when the cart has compressed the spring to when it has rolled down the ramp.
of
PEG PES KET KER
PEG PES KET KER AEINT
b. Explain the reasoning used to complete the energy bar chart.
c. Calculate the speed of the cart at the bottom of the hill. Ignore any energy losses due to
friction. Do not consider the rotational energy of the wheels in your analysis.
d. If the rotational energy of the wheels were included, would the carts' speed at the bottom of
the hill be greater than, less than or the same as your calculated value above? Explain your
response.
Transcribed Image Text:v = 30. m/s 1. A projectile is launched horizontally at a speed of 30 meters per second from a platform above the ground. The projectile impacts the ground at a distance of 9 meters from the base of the platform. Ignore air resistance. Impact location a. Calculate the height of the platform from which the projectile was launched. b. Explain the physics concepts used to solve for the height of the platform. c. If the projectile was launched off of the platform at 50 m/s, would the time that the projectile is in the air increase, decrease, or not change? Explain your response. 2. In the diagram below, a stationary solid block of mass 0.15 kg slides down one ramp from point A and up the next ramp to point C, arriving with a velocity of 5m/s. 0.15 kg 2.0 m 0.50 m a. Write an equation that represents the motion of the block from point A to point C. Your equation should use letters & symbols from the problem, and fundamental constants, such as g. b. Determine the amount of energy that is dissipated (or "lost") due to friction between the ramp and the block. c. Explain how your solution demonstrates the application of the conservation of energy. 3. A hoop and a solid sphere are released from the top of a ramp at the same time. The objects have the same radius, but the mass of the sphere is 5M, while the hoop is M. The moment of inertia for the sphere is 2/5MR? and the hoop is MR?. a. Which object, if either, will reach the end of the ramp first? Explain your answer. b. Which object, if either, will have a greater rotational kinetic energy at the bottom of the ramp? Explain your answer. 4. A cart with a mass of 5 kg begins at rest at the top of a hill with height 0.75 meters. The cart is compressed a distance of 0.15 m against a spring with a spring constant of 200 N/m. The spring is released, causing the cart to shoot forward and then down the hill. a. Complete the qualitative energy bar chart below for the earth-cart-spring system for the time between when the cart has compressed the spring to when it has rolled down the ramp. of PEG PES KET KER PEG PES KET KER AEINT b. Explain the reasoning used to complete the energy bar chart. c. Calculate the speed of the cart at the bottom of the hill. Ignore any energy losses due to friction. Do not consider the rotational energy of the wheels in your analysis. d. If the rotational energy of the wheels were included, would the carts' speed at the bottom of the hill be greater than, less than or the same as your calculated value above? Explain your response.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Uncertainty Principle
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON