Incline Problem: Block Projected Up 35 Degrees, 8.2 ft/s

  • Thread starter Thread starter scottgregorysg
  • Start date Start date
  • Tags Tags
    Incline
Click For Summary
SUMMARY

The discussion focuses on a block projected up a frictionless inclined plane at an angle of 35 degrees with an initial velocity of 8.2 ft/s. The acceleration along the incline is calculated as -g*cos(35), where g represents the acceleration due to gravity. Using kinematic equations, participants conclude that the block will return to the bottom of the incline with the same speed of 8.2 ft/s due to the conservation of energy principle, as there are no external forces acting on it.

PREREQUISITES
  • Understanding of kinematics and motion equations
  • Knowledge of gravitational acceleration (g = 32.2 ft/s²)
  • Familiarity with trigonometric functions (sine and cosine)
  • Concept of conservation of energy in physics
NEXT STEPS
  • Study kinematic equations for constant acceleration scenarios
  • Learn about the conservation of energy in mechanical systems
  • Explore the effects of friction on inclined planes
  • Investigate projectile motion and its applications
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in understanding motion on inclined planes.

scottgregorysg
Messages
2
Reaction score
0
a block is projected up a frictionless inclined plane. the angle of incline is 35 degrees, and the initial velocity is 8.2 ft/s. how far up the plane does the block travel? how long does it take to get there? and what is its speed when it gets back to the bottom?
 
Physics news on Phys.org
Shouldn't this be on the homework forum?

Find the acceleration of the body along the incline and use kinematics.
 
I think the acceleration would be -g*cos(35), from that use constant acceleration equations to solve the problem.
 
It will be with sine. Of course with no friction.
 
And due to conservation of energy and lack of friction (external force) without even solving the problem we can say it would come back down with the same speed...
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K
Replies
11
Views
1K
  • · Replies 4 ·
Replies
4
Views
3K
Replies
4
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
Replies
12
Views
2K
Replies
3
Views
3K
  • · Replies 16 ·
Replies
16
Views
5K