Newtons 2nd law another problem

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SUMMARY

The discussion focuses on solving a physics problem involving a block propelled up a 48-degree frictionless inclined plane with an initial velocity of 1.20 m/s. To determine how far the block travels before coming to rest (part A), participants emphasize using the conservation of energy principle, specifically the relationship KE + PE = Etotal. The kinetic energy (KE) is calculated using the formula KE = 1/2mv^2, while potential energy (PE) is given by PE = mgh. This approach allows for the calculation of both distance and time taken to reach the maximum height.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with kinetic and potential energy concepts
  • Knowledge of energy conservation principles
  • Basic algebra for solving equations
NEXT STEPS
  • Study the application of conservation of energy in physics problems
  • Learn how to derive equations of motion for inclined planes
  • Explore the effects of friction on inclined plane problems
  • Investigate the relationship between angle of incline and maximum height achieved
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in understanding the principles of motion and energy conservation in inclined plane scenarios.

toddler
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A block is propelled up a 48 degree frictionless inclined plane with an initial velocity of 1.20 m/s...A) how far up the plane does the block go before coming to a rest. B) How long does it take to move to that position?


for part A) , i have initial velocity and I am looking for x (distance)

i'm stuck...not sure what to do
 
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If you learned about kinetic and potential energy then the problem is not to bad. You just have to use the relationship: KE + PE = Etotal (where Etotal should always be constant). So intially when you "launch" the block, your energy is all KE and zero PE. But when it reaches its maximum height then your energy is all PE. See what you can do...

Hint: KE = 1/2mv^2 and PE = mgh
 

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