Velocity and Acceleration Parallel?

Click For Summary
SUMMARY

The discussion addresses whether velocity and acceleration vectors can be parallel at any point along the trajectory of an object not thrown straight up or down. It is established that while moving upwards, the velocity is positive and acceleration is negative, indicating that they are not parallel. At the peak of the trajectory, the velocity is zero, making it perpendicular to the downward acceleration. The conversation emphasizes that the horizontal component of velocity remains unaffected by the vertical acceleration, which is always directed downward.

PREREQUISITES
  • Understanding of vector components in physics
  • Knowledge of kinematics, specifically projectile motion
  • Familiarity with the concepts of velocity and acceleration
  • Basic grasp of the effects of gravity on motion
NEXT STEPS
  • Study the principles of projectile motion in physics
  • Learn about vector decomposition in two-dimensional motion
  • Explore the effects of gravity on different trajectories
  • Investigate the relationship between velocity and acceleration in various motion scenarios
USEFUL FOR

Students studying physics, educators teaching kinematics, and anyone interested in understanding the dynamics of projectile motion.

clamchowder
Messages
6
Reaction score
0

Homework Statement


If the object is not thrown straight up or down, is there any point along the path where the velocity and acceleration vectors are parallel to each other?



Homework Equations





The Attempt at a Solution



I know that velocity would be positive, but while moving upwards, wouldn't the acceleration be negative because the ball is slowing down (neg acc and positive v=slowing down)? And vice versa for going down. At the peak, velocity and acceleration would be perpendicular because there is no vertical velocity at that point, and acceleration would be facing downwards.
 
Physics news on Phys.org
Think: If the object is thrown at an angle it will have a horizontal velocity component and a vertical velocity component. The acceleration, as you said is always vertically downward. What do you know about the horizontal component of velocity?

ehild
 

Similar threads

Replies
11
Views
1K
  • · Replies 16 ·
Replies
16
Views
2K
Replies
16
Views
1K
Replies
68
Views
5K
  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
Replies
1
Views
941
  • · Replies 2 ·
Replies
2
Views
871
  • · Replies 7 ·
Replies
7
Views
2K
Replies
13
Views
6K