There’s a battery powered skateboard hidden in the mop bucket.  Assume the mass of the entire system is {43} kg, and gravity is 10 N/kg.  (Maybe start with part d?) If the board can accelerate at 1.5 m/s2,  how much net force is needed? If the skateboard motor can put out 300 N of force, how much friction (neglect air resistance combined) does the system have? What is the kinetic frictional coefficient for mop bucket on roadway?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 30P: If the rocket sled shown in the previous problem starts with only one rocket burning, what is the...
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There’s a battery powered skateboard hidden in the mop bucket.  Assume the mass of the entire system is {43} kg, and gravity is 10 N/kg.  (Maybe start with part d?)

  1. If the board can accelerate at 1.5 m/s2,  how much net force is needed?
  2. If the skateboard motor can put out 300 N of force, how much friction (neglect air resistance combined) does the system have?
  3. What is the kinetic frictional coefficient for mop bucket on roadway?
  4. Draw a Force Body Diagram for the man/bucket, assuming that the man, the bucket, the leaf blower, and the umbrella are all a single object and on level ground.  Label and calculate all forces.
  5. Explain why this wouldn’t work without the hidden motor in the mop bucket.  Explain in terms of the forces between man, umbrella, and leaf blower.
  6. Identify two sets of force pairs in this system.
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