Motion of a Body: Can Acceleration Cause Motion?

  • Thread starter Thread starter Amrutha.phy
  • Start date Start date
  • Tags Tags
    Body Motion
AI Thread Summary
A body with zero initial velocity can indeed begin to move solely due to acceleration. Acceleration is defined as a change in velocity, meaning that once acceleration is applied, the body will have a non-zero velocity. For example, dropping a ball demonstrates how acceleration can initiate motion from rest. Additionally, a motionless body can experience angular acceleration without linear movement in a zero-gravity environment. Therefore, acceleration can cause motion even when initial velocity is absent.
Amrutha.phy
Messages
21
Reaction score
0
Can a body which has no initial velocity move just with acceleration?
 
Physics news on Phys.org
Amrutha.phy said:
Can a body which has no initial velocity move just with acceleration?
Not sure what you mean. Once it starts moving it will have both acceleration and velocity.

You can certainly have a body with zero initial velocity begin moving under an acceleration. Drop a ball.
 
Amrutha.phy said:
Can a body which has no initial velocity move just with acceleration?
"Acceleration" means "change in velocity. As long as it has acceleration, even if it has no initial velocity it will immediately have non-zero velocity.
 
A motionless freely-floating body can also spin without moving when given only angular acceleration (in zero gravity). See

[added] Angular acceleration requires a pair of forces (a couple).
 
Last edited by a moderator:

Thread 'Derivation of Hamilton's Principle: Questions'

I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
View full post »

Similar threads

B Static friction needed for rolling without slipping
Replies
4
Views
2K
B Is simple harmonic motion also a pure translatory motion?
Replies
21
Views
2K
A Rigid body motion (RBM) transformation
Replies
3
Views
1K
I Why does a free rigid body rotate only about its COM when F(ext) is applied?
Replies
7
Views
2K
B Understanding Average Velocity in Linear Motion with Constant Acceleration
Replies
1
Views
1K
Rigid body kinematic motion and rotation
Replies
13
Views
2K
Projectile motion of a two-point rigid body
Replies
8
Views
2K
B Does weight affect the acceleration of an object?
Replies
9
Views
2K
Escape Velocity and the Motion of Two Massive Bodies
Replies
4
Views
2K
Kinematics: A Complete Picture of Motion Without Causes
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top