Kinematics Question on falling rock

  • #1
Riju
1
0

Homework Statement


A rock is thrown straight upward from the edge of a 30m cliff, rising 10m, then falling all the way down the base of the cliff.


Homework Equations




The Attempt at a Solution


Well, because the rock was thrown 10m up, and then it came all the way down, I added those quantities (10m+30m) so I got 40m. But since the displacement is the object's initial position to its final position, regardless of the path actually taken, would I have to count the rock before it was thrown? Then the answer would be 30m
 

Answers and Replies

  • #2
haruspex
Science Advisor
Homework Helper
Insights Author
Gold Member
38,754
8,160

Homework Statement


A rock is thrown straight upward from the edge of a 30m cliff, rising 10m, then falling all the way down the base of the cliff.



Homework Equations




The Attempt at a Solution


Well, because the rock was thrown 10m up, and then it came all the way down, I added those quantities (10m+30m) so I got 40m. But since the displacement is the object's initial position to its final position, regardless of the path actually taken, would I have to count the rock before it was thrown? Then the answer would be 30m[/B]
You haven't stated what question you are asked.
 

Suggested for: Kinematics Question on falling rock

Replies
5
Views
256
Replies
8
Views
316
  • Last Post
Replies
8
Views
524
Replies
7
Views
352
Replies
13
Views
312
Replies
3
Views
314
  • Last Post
Replies
3
Views
350
  • Last Post
Replies
12
Views
932
Replies
2
Views
351
Top