How far does the marble travel horizontally before hitting the floor?

Click For Summary
SUMMARY

The discussion focuses on calculating the horizontal distance a marble travels before hitting the floor after being shot from a horizontal spring with a force constant of 12 N/m. The marble, with a mass of 8.3 x 10^-3 kg, is initially compressed by 4.0 cm, resulting in an initial velocity of 1.52 m/s using the conservation of energy principle (Ee = Ek). The problem is framed as a projectile motion scenario, where the vertical and horizontal motions are treated independently to determine the time of flight and horizontal distance traveled.

PREREQUISITES
  • Understanding of energy conservation principles, specifically Ee = Ek.
  • Familiarity with projectile motion concepts and equations.
  • Knowledge of kinematic equations related to vertical motion.
  • Basic algebra for solving equations involving mass, velocity, and distance.
NEXT STEPS
  • Study the equations of motion for projectile motion, focusing on horizontal and vertical components.
  • Learn how to apply the conservation of energy in mechanical systems.
  • Explore kinematic equations to calculate time of flight in projectile motion.
  • Investigate real-world applications of springs and projectile motion in physics experiments.
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and projectile motion, as well as educators seeking to enhance their teaching methods in these topics.

jasonbans
Messages
45
Reaction score
0

Homework Statement


A horizontal spring, of force constant 12N/m, is mounted at the edge of a lab bench to shoot marbles at targets on the floor 93.0 cm below. A marble of mass 8.3 x 10^-3kg is shot from the spring, which is initially compressed a distance of 4.0 cm. how far does the marble travel horizontally before hitting the floor?


Homework Equations


Ee= 1/2kx^2
Ep=mgh
Ek=1/2mv^2 ?
W= Fd?

The Attempt at a Solution



not sure how to start it off
 
Physics news on Phys.org
First let us find the initial velocity with which the marble is projected.

What principle do you think we will use?
 
Start by figuring how fast the marble is moving when it leaves the spring.
 
ok i did that and i got 1.52m/s by using the law of conservation energy "Ee=Ek"
 
correct
 
jasonbans said:
ok i did that and i got 1.52m/s by using the law of conservation energy "Ee=Ek"
Good.

Now you can treat the rest as a projectile motion problem. How long does it take for the marble to hit the floor?
 
Now this is the speed with which the marble is projected horizontally onto the floor below.
 
we never have touch upon projectile motion in class. is there some other method?
 
in projectile motion the vertical motion is independent of the horizontal motion.

Hence one can treat projectile motion as the resultant of two linear motions. So just work in linear motion. But be careful whether you are working in the vertical or in the horizontal.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 14 ·
Replies
14
Views
4K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 3 ·
Replies
3
Views
7K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
3
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K