What is the accelerating force of a bullet in a 10cm gun barrel?

In summary, to find the accelerating force of a 10g bullet in a 10cm gun barrel that accelerates from rest to 500m/s, convert the mass and length into kg and m and rearrange the equation v^2=vo^2+2a(x-xo) to solve for a. Then substitute that value into the equation F=ma. Pay attention to units to get the correct answer.
  • #1
Gradyjenkinz
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1

Homework Statement

[/B]A 10g bullet accelerates from rest to 500m/s in a gun barrel of length 10cm. Find the accelerating force (assuming it is constant).

Homework Equations


F=ma, v^2=vo^2+2a(x-xo)?

The Attempt at a Solution


I tried using F=ma, but it does not equal the answer in the back of the book.
 
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  • #2
Have you converted the mass and length into kg and m? Then rearrange v2=vo2+2ax to find a. Then sub that into F=ma.
 
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  • #3
Issy04 said:
Have you converted the mass and length into kg and m? Then rearrange v2=vo2+2ax to find a. Then sub that into F=ma.
Oh jeez. Got it now, thank you. Gotta make sure I actually pay attention to units :(
 
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1. What are Newton's Laws of Motion?

Newton's Laws of Motion are three fundamental principles that describe the motion of objects in the universe. They were developed by Sir Isaac Newton in the 17th century and are considered the cornerstone of classical mechanics.

2. What is the first law of motion?

The first law of motion, also known as the law of inertia, states that an object at rest will remain at rest and an object in motion will remain in motion at a constant velocity unless acted upon by an external force.

3. What is the second law of motion?

The second law of motion states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. This can be represented by the equation F=ma, where F is force, m is mass, and a is acceleration.

4. What is the third law of motion?

The third law of motion, also known as the law of action and reaction, states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object will exert an equal force in the opposite direction.

5. How do Newton's Laws apply to everyday life?

Newton's Laws can be observed in many aspects of everyday life, such as driving a car, throwing a ball, or riding a bike. They help explain the behavior of objects in motion and are essential in fields such as engineering and physics.

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