Do I need to use trig and is the 10 centimeters an angle

  • Thread starter Thread starter Ilovmyjeep
  • Start date Start date
  • Tags Tags
    Angle Trig
Click For Summary
SUMMARY

The discussion centers on the physics of a bullet passing through a 10 cm thick board, with an initial speed of 400 m/s and a final speed of 300 m/s. The acceleration of the bullet as it traverses the board can be calculated using the kinematic equation, which relates initial velocity, final velocity, acceleration, and distance. The total time taken for the bullet to pass through the board can also be derived from these values. It is emphasized that consistent units (MKS or CGS) must be used for accurate calculations.

PREREQUISITES
  • Understanding of kinematic equations
  • Familiarity with metric units (MKS and CGS)
  • Basic knowledge of acceleration and velocity concepts
  • Ability to perform unit conversions
NEXT STEPS
  • Learn to apply kinematic equations for motion analysis
  • Study the principles of acceleration in physics
  • Explore unit conversion techniques between MKS and CGS
  • Investigate real-world applications of projectile motion
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the dynamics of projectile motion and the calculations involved in analyzing bullet trajectories.

Ilovmyjeep
Messages
1
Reaction score
0
A bullet is fired through a board 10 cm thick in such a way that the bullets line of motion is perpendicular to the face of the board. If the initial speed of the bullet is 400 m/s and it emerges from the other side with a speed of 300 m/s. what is the accelaeration of the bullet as it passes through the board and the total time it takes to pass through the board?:rolleyes: :rolleyes: ]

]
 
Physics news on Phys.org
No, you do not, and no. 10 centimeters are 10 hundredths of a meter which is the primary metric unit of length.
 
Ilovmyjeep said:
A bullet is fired through a board 10 cm thick in such a way that the bullets line of motion is perpendicular to the face of the board. If the initial speed of the bullet is 400 m/s and it emerges from the other side with a speed of 300 m/s. what is the accelaeration of the bullet as it passes through the board and the total time it takes to pass through the board?
As Atomos indicated, make sure units have the same basis MKS or cgs. One has distance, and velocity before and after that distance. There is a particular equation concerning that relationship.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
14
Views
4K
  • · Replies 28 ·
Replies
28
Views
9K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 6 ·
Replies
6
Views
10K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
3
Views
5K