Forces acting on a thrown object

  • Thread starter Thread starter Annabelle
  • Start date Start date
  • Tags Tags
    Forces
AI Thread Summary
A ball with a mass of 200 g is thrown upwards at 16.0 m/s, and the force acting on it during its upward movement is calculated using the weight formula w=mg. The weight force is determined to be 1.96 N, which is correct for the question posed. There is some confusion about whether the calculation applies to the ball's downward movement as well. However, the equation used is appropriate for determining the force acting on the ball during its ascent. The discussion clarifies that the weight force remains the same regardless of the direction of movement.
Annabelle

Homework Statement


A ball with a mass of 200 g is thrown vertically upwards with an initial velocity of 16.0 m/s. It is allowed to fall back to its original position. Ignore air resistance.
Calculate the force acting on the ball during its upward movement.

Homework Equations


w=mg

The Attempt at a Solution


It's a really basic question, but I can't wrap my head around how or what it means by calculating force.
The only thing I've been able to think of given the data I have is weight force, but I'm not sure if that's what the question is asking me to do?
w=m*g
w=0.200*9.8
w=1.96N
I'm so sorry for the dumb question!
 
Physics news on Phys.org
Welcome to PF!

Annabelle said:
w=m*g
w=0.200*9.8
w=1.96N
That is correct.
 
cnh1995 said:
Welcome to PF!That is correct.

Is it a correct answer to the question posed though? What if the ball is in a downward movement?
Thank you for your reply!
 
Annabelle said:
What if the ball is in a downward movement?
What do you think? Did you use the upward velocity in the calculation?
 
haruspex said:
What do you think? Did you use the upward velocity in the calculation?
No, but I'm confused as to whether I used the right equation to answer the original question.
 
Annabelle said:
No, but I'm confused as to whether I used the right equation to answer the original question.
Yes, you did use the right equation to answer the original question.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Forces that act on a physical pendulum
Replies
7
Views
3K
How to calculate the force exerted by the "tendon" on the "tibia" bone?
Replies
4
Views
949
What minimum speed do we need to give a charged ball?
Replies
12
Views
1K
Ball on a string thrown around a spool
Replies
3
Views
833
Mechanics: Elevator Accelerating Downward
Replies
10
Views
4K
Equilibrium problem: Multiple forces acting on this hinged, supported beam
Replies
3
Views
1K
Oblique soccer shot calculation task
Replies
38
Views
3K
Equilibrium of Forces and Torques on Sawhorses Supporting a Person on a Board
Replies
6
Views
2K
How to calculate the wind force acting on a water drop?
Replies
39
Views
3K
Resistance force changing the velocity of an object
Replies
8
Views
1K

Hot Threads

Recent Insights

Back
Top