Daredevil jumps a canyon

  • Thread starter Dan66Stang
  • Start date
  • #1
Dan66Stang
1
0
Hey guys/girls, I would appreciate some help on a problem that I am having trouble with.

A daredevil jumps his motorcycle across a canyon. If his acceleration is 9.81 m/s^2 downward, determine:

a) the initial speed Vo required to complete the jump.
b) the final speed Vf.
c) The surface angle theta required at the end of the jump to ensure a smooth landing.

Okay here's some info about the jump.

Initial height = Ho = 70m
Final height = Hf = 35m
The canyon is 100m wide

Help would be appreciated, thanks.
 

Answers and Replies

  • #2
fizzzzzzzzzzzy
44
1
what i would do is use x = x0 +vt + at^2 and plug in the appropriate numbers for both the x and y coordinates. and then for the angle you just plug in the x and y speeds for tangent and take that angle.
 
  • #3
Bitter
98
0
Well, here are some hints. I would break this down into components. Find the motion in a horizontal motion then vertical, and then combine your vectors.
 
  • #4
hage567
Homework Helper
1,509
2
what i would do is use x = x0 +vt + at^2 and plug in the appropriate numbers for both the x and y coordinates. and then for the angle you just plug in the x and y speeds for tangent and take that angle.

This will not work for the x direction, since there is no acceleration in that direction when he is in the air.
 

Suggested for: Daredevil jumps a canyon

  • Last Post
Replies
4
Views
279
Replies
9
Views
522
  • Last Post
Replies
5
Views
227
Replies
10
Views
480
  • Last Post
2
Replies
35
Views
2K
  • Last Post
Replies
6
Views
464
  • Last Post
2
Replies
51
Views
1K
  • Last Post
Replies
9
Views
961
Top