Basic Concepts and Units - Review Problems

RP1-1) What is the difference between a particle and a rigid body? Check all that apply.

RP1-2) What is the difference between kinematics and kinetics?    

• Given the velocity of an object as a function of time, find the acceleration.           

 

• A force pushes a body across a frictionless floor, find the acceleration.           

 

• A block slides down a rough incline, find the acceleration.           

 

• A disk rotates at 60 rpms, how many rotations does it make in 5 minutes.           

 

• A ball is dropped from a height of 5 feet, how long does it take to reach the ground? Neglect air resistance.          

RP1-3) Of the following units, which may be used to describe weight?

RP1-4) Of the following units, which may be used to describe mass?

RP1-5) Is mass a scalar or a vector?

RP1-6) Is weight a scalar or a vector?

RP1-7) The acceleration due to gravity is constant no matter where you are standing on earth.