Finding Distance on an incline

  • #1

Homework Statement


A block is given an initial speed of 3.7 m/s up a frictionless plane angled at 32 degrees. How far up the ramp will the block travel

Homework Equations


v^2 = v null^2 +2a delta x


The Attempt at a Solution


3.7^2 -0^2/(2*9.8) =x
my biggest issue is that i wasn't given a mass, and i cant find it using any of the formulas i know since i also dont have the force. I feel like im using the wrong formula since im not using the angle at all. [/B]
 

Answers and Replies

  • #2
gneill
Mentor
20,913
2,861
Hi Cantphysics,

Welcome to Physics Forums.

There are two approaches. One using the kinematic equations where you'll need to draw a free body diagram for the block on the ramp to determine the acceleration. You'll find that the mass variable will eventually cancel out so you don't need a value for it. The other approach is to use conservation of energy. Again the mass will cancel out.
 
  • #3
Chandra Prayaga
Science Advisor
650
149
Notice that the only data you have not been explicitly given is the acceleration. To find that, you will need to follow the procedure suggested gneill in post #2
 

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