I If we throw a ball with initial velocity v0, is there a force?

AI Thread Summary
In projectile motion, when a ball is thrown with an initial velocity v0, there is no force acting in the x direction, as the horizontal component of velocity (v0x) remains constant throughout the flight. The only force present is in the y direction, which is due to gravity. This means that while the ball travels horizontally, it experiences no acceleration in that direction. The discussion emphasizes that without air resistance, the horizontal motion is uniform. Therefore, the ball's trajectory is determined solely by its initial velocity and the gravitational force acting downward.
annamal
Messages
393
Reaction score
33
If we throw a ball with initial velocity v0, and the ball progresses in a projectile motion, ignoring air resistance, will there be a force in the x direction? If so, what is that force in the x direction's value mathematically? I know there is a force in the y direction due to gravity.
 
Physics news on Phys.org
No force exists in the x direction, as the value of v0x remains the same during the flight (no acceleration).
 
annamal said:
If we throw a ball with initial velocity v0, and the ball progresses in a projectile motion, ignoring air resistance, will there be a force in the x direction? If so, what is that force in the x direction's value mathematically?
More critically, what would be the direction of such a force?
 
annamal said:
If we throw a ball with initial velocity v0
That's not much of a "throw". You are just releasing the ball, which will fall straight down.
 

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Free fall of person in a sled to direct horizontal motion by atmospheric resistance'

Let there be a person in a not yet optimally designed sled at h meters in height. Let this sled free fall but user can steer by tilting their body weight in the sled or by optimal sled shape design point it in some horizontal direction where it is wanted to go - in any horizontal direction but once picked fixed. How to calculate horizontal distance d achievable as function of height h. Thus what is f(h) = d. Put another way, imagine a helicopter rises to a height h, but then shuts off all...
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »

Similar threads

B The physics of flywheel launchers (like tennis ball shooters)
2
Replies
60
Views
4K
I Coriolis acceleration of a projectile launched at the equator
Replies
4
Views
2K
B How to characterize a rubber ball moving horizontally and bouncing off of a vertical wall?
Replies
8
Views
2K
B Can energy be decomposed?
Replies
2
Views
1K
B Path traced by a point on the periphery of the ball? Helix?
Replies
6
Views
723
Projectile motion problems with No horizontal acceleration
Replies
17
Views
18K
Relationship between Drag Force & Viscous Torque on USA Football
Replies
6
Views
1K
B Questions about momentum and force as well as normal force/friction
Replies
35
Views
3K
Projectile Intercept Math & Trigonometry
Replies
4
Views
2K
Why Does Second Collision in Ballistic Pendulum Lead to Initial State?
Replies
5
Views
1K

Hot Threads

Recent Insights

Back
Top