Question

1) Determine the height above the surface of a planet with radius R and mass M at which the acceleration due to gravity will be one half its surface value.

2) You find a 0.065 kg piece of wood attached to a string and decide to try to whirl is over your head in a horizontal circle. It makes 2.5 revolutions every second in a circle of radius 1.2 m.

a. Will the ball swing at an angle above the horizon, below the horizon, or precisely at 0 degrees with respect to the horizon? Why?
b. Determine the angle that the cord makes with the horizontal.
c. What is the tension in the chord?

3) Two blocks are stacked on top of each other and are each at rest. The top box has a mass of 5 kg and the bottom box has a mass of 10 kg. The coefficient of static friction between the blocks is 0.25 and coefficient of kinetic friction is 0.18. The surface that the bottom box rests on is frictionless. A horizontal force of 50N is then applied to the bottom box.

a. Draw a free body diagram for each box.
b. Do the boxes accelerate together at the same rate? Calculate the rate of acceleration of each box.
c. Is the friction between the blocks static or kinetic, why?

Solution Preview

This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.

Physics Questions

This is only a preview of the solution. Please use the purchase button to see the entire solution

Assisting Tutor

Related Homework Solutions

Physics Questions
Homework Solution
$5.00
Physics
Questions
Particle
Circular
Acceleration
Speed
Car
Truck
Magnitude
Rocket
Vertical
Work and Energy Problems
Homework Solution
$25.00
General
Physics
Work
Energy
Kinetic
Potential
Force
Mass
Acceleration
Motion
Speed
Distance
Time
Exercises
Solved
Problems
DC Circuits - Kirchhoff’s Laws (Laboratory Questions)
Homework Solution
$25.00
Engineering
Physics
DC Circuits
Laboratory
Experiments
Kirchhoff’s Laws
Mathematics
Basic Network
Equations
Tables
Absolute Discrepancy
Resistance
Batteries
Voltage
Physics Questions
Homework Solution
$6.00
Physics
Gravity
Work
Elevator
Descends
Floor
Skateboarder
Kinetic
Energy
Potential
Mechanical
Quantity
Mechanics Problems
Homework Solution
$10.00
Physics
Mechanics
Roller-Coaster
Diagrams
Potential Energy
Gravitation
Kinetic Energy
Initial Points
Distances
Forces
Mass
Get help from a qualified tutor
Live Chats