The Change in velocity and direction.

Click For Summary
SUMMARY

The acceleration of a bullet shot horizontally at 40 m/s, which changes to a velocity of 44.5 m/s at an angle of 26.1 degrees below the horizontal over a time span of 2.0 seconds, can be calculated using the formula a = Δv / t. The initial velocity (vi) is 40 m/s, and the final velocity (vf) is 44.5 m/s. The correct calculation yields an acceleration of 2.25 m/s², not 41 m/s² as previously attempted.

PREREQUISITES
  • Understanding of kinematic equations
  • Familiarity with vector components
  • Knowledge of acceleration calculations
  • Basic trigonometry for angle conversions
NEXT STEPS
  • Review kinematic equations in physics
  • Study vector decomposition and addition
  • Practice problems involving acceleration and direction changes
  • Learn about projectile motion and its equations
USEFUL FOR

Students studying physics, particularly those focusing on kinematics and acceleration, as well as educators looking for problem-solving strategies in motion analysis.

Gprime
Messages
1
Reaction score
0

Homework Statement


What is the acceleration of a bullet that was shot at 40.m/s in the horizontal and then changed to a velocity of 44.5m/s at 26.1* below the horizontal in a time of 2.0 seconds.

Homework Equations



vf-vi= delta v a= delta v / time

The Attempt at a Solution



I have tried to solve using head to tail diagram and i ended up 41m/s2. I am not entirely sure of this answer, and I have a test next morning on this.
 
Physics news on Phys.org
That's not correct. Show how you got that result.
 

Similar threads

Calculate the Acceleration of this Car
  • · Replies 7 ·
Replies
7
Views
1K
Find the magnitude of the momentum change of the ball?
  • · Replies 2 ·
Replies
2
Views
3K
Relating acceleration to distance and time
  • · Replies 5 ·
Replies
5
Views
3K
Question about Projectile Motion: Throwing a Flower Pot from a Balcony
  • · Replies 18 ·
Replies
18
Views
2K
Calculate change in KE and momentum (impulse)
  • · Replies 7 ·
Replies
7
Views
4K
Projectile Motion Problem Involving Initial Velocity and Gravity Only
  • · Replies 11 ·
Replies
11
Views
2K
Find the rate of change of velocity
  • · Replies 5 ·
Replies
5
Views
2K
Question About Momentum: Ball Rolling up a Curved Ramp
  • · Replies 12 ·
Replies
12
Views
2K
In the circular motion below, what will be the velocity?
  • · Replies 14 ·
Replies
14
Views
2K
Work done during a collision -- Change in Kinetic Energy & change in Momentum
  • · Replies 1 ·
Replies
1
Views
2K