Why Is My Calculation on Rocket's Projectile Motion Incorrect?

  • Thread starter Thread starter biglank3
  • Start date Start date
Click For Summary
SUMMARY

The discussion focuses on calculating the projectile motion of a rocket launched at a 53° angle with an initial speed of 75 m/s and an acceleration of 21 m/s² for 21 seconds before engine failure. Key calculations include determining the rocket's maximum altitude, total time of flight, and horizontal range. The correct application of kinematic equations and vector analysis is essential for accurate results in these calculations.

PREREQUISITES
  • Understanding of kinematic equations for projectile motion
  • Knowledge of vector decomposition in physics
  • Familiarity with concepts of acceleration and free fall
  • Ability to perform trigonometric calculations
NEXT STEPS
  • Study the kinematic equations for projectile motion in detail
  • Learn about vector decomposition and its application in physics problems
  • Explore the effects of acceleration on projectile trajectories
  • Practice solving problems involving free body motion after engine failure
USEFUL FOR

This discussion is beneficial for physics students, educators teaching projectile motion, and anyone interested in understanding the dynamics of rocket launches and calculations related to motion in two dimensions.

biglank3
Messages
1
Reaction score
0
this is vectors and projectiles...our teacher told us how to do it...and i did exactly what he told us to do, but it isn't right...

A rocket is launched at an angle of 53° above the horizontal with an initial speed of 75 m/s, as shown in Figure 3-31. It moves for 21 s along its initial line of motion with an acceleration of 21 m/s2. At this time its engines fail and the rocket proceeds to move as a free body.

(a) What is the rocket's maximum altitude?

(b) What is the rocket's total time of flight?

(c) What is the rocket's horizontal range?
 
Physics news on Phys.org
What work have you done?
 

Similar threads

Hitting a rocket with a projectile
  • · Replies 53 ·
2
Replies
53
Views
5K
Model Rocket Launch: Maximum Height, Time, and Duration Calculations
  • · Replies 1 ·
Replies
1
Views
2K
How Does Rocket Ejection Mass Affect Its Velocity in Space?
  • · Replies 1 ·
Replies
1
Views
2K
Projectile motion problem where the projectile is a rocket
  • · Replies 8 ·
Replies
8
Views
6K
Why is my calculation for a rocket's maximum range incorrect?
  • · Replies 21 ·
Replies
21
Views
3K
Upward and downward movement of a rocket with the equation of motion
  • · Replies 13 ·
Replies
13
Views
2K
Optimal Angle and Horizontal Range of a Bottle Rocket Projectile
  • · Replies 1 ·
Replies
1
Views
3K
How Does the Relativistic Rocket Equation Describe Velocity?
  • · Replies 2 ·
Replies
2
Views
2K
Forces - Space Shuttle Takeoff Calculations
  • · Replies 22 ·
Replies
22
Views
3K
What is the Correct Acceleration of the Rocket During Its Launch Phase?
  • · Replies 3 ·
Replies
3
Views
3K