The final speed of the crate
Answer to Problem 73GP
Solution:
Explanation of Solution
Given The mass of the crate is
The initial speed of the crate is
The constant horizontal force is
The distance moved by the crate on the frictionless floor is 11.0 m.
Formula used
Third equation of motion:
Here, v is the final velocity, u is the initial velocity, a is the acceleration, s is the distance moved.
For the surface with friction, the acceleration is
Calculations
The acceleration of the crate on the frictionless surface is:
Since the crate starts from rest, hence the velocity after moving 11.0 m is:
The acceleration of the crate on the surface with friction is,
Therefore, the final velocity of the crate for the next 10.0 m is calculated from the kinematics equation
Conclusion:
The final speed of the crate can be calculated from the consideration of the equations of motion.
Chapter 6 Solutions
Physics: Principles with Applications
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