- #1
Kalix
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Homework Statement
Question: An object traveling at a constant speed of 22m/s begins to experience a force of 15N in the opposite direction of its motion. (Hint given: Start by finding objects acceleration)
a. How long will it take for the 8kg object to come to a complete stop once it experiences the force?
b. If the object was traveling in a straight line, how far did the object travel as it slowed down?
Homework Equations
I am not exactly sure what the relevant equations are for this problem but here are the equations we have used so far in this unit.
F=ma
W=mg
Fs=μsxFn (Static friction=mu times normal force)
Fk=μkxFn (Kinetic friction=mu times normal force)
I am guessing that I have to use one of those equations.
The Attempt at a Solution
Here is my small attempt.
F=ma
15N=(8g)(a)
a=1.875m/s^2
This is where I get stuck. First off I don't even know if the value I got for acceleration is correct and secondly where do I go from here. Do I go back to my kinematics equations to find time in part "a" and X in part "b"?