Tagged Questions
-1
votes
1answer
32 views
Projectile motion: Thrust in x direction = acceleration in x direction? [closed]
I understand that in projectile motion, when an object is solely under the influence of gravity, there is no acceleration in the $x$-direction (with the acceleration due to gravity in the $y$ ...
0
votes
0answers
43 views
Horizontal Displacement - Projectiles [closed]
I am having trouble on what is most likely a fairly basic thing to most of you.
I have a question where I have gathered the following:
Given Values:
...
1
vote
3answers
175 views
Projectile motion, canon vs cliff
A cannon is placed at the bottom of a cliff 85 m high. If the cannon is fired straight upward, the cannonball just the reaches the top of the cliff.
a) Calculate the initial speed of the cannonball.
...
7
votes
1answer
249 views
One strategy in a snowball fight
Here's a common college physics problem:
One strategy in a snowball fight is to throw a first snowball at a
high angle over level ground. While your opponent is watching the
first one, you ...
0
votes
0answers
122 views
How to calculate acceleration of a falling ball [closed]
If a ball was thrown or fell at an angle, given a starting height, and how far away the ball landed (ignoring air resistance) how would you calculate how fast it was going? (I'm guessing is meters per ...
-1
votes
2answers
1k views
How to find minimum velocity without time? [closed]
I have a physics problem that says
A 76.0-kg boulder is rolling horizontally at the top of a vertical cliff that is 20m above the surface of a lake. The top of the vertical face of a dam is ...
1
vote
0answers
209 views
Projectile motion equations @ very (!) high starting velocity
I've already searched Physics StackExchange for some similar question but I didn't find anything about this.
Assumptions:
Earth is a perfect sphere with it's core (X,Y,Z) -> (0,0,0) as a ...
0
votes
2answers
1k views
Projectile motion without air resistance
Does the mass of projectile affect its trajectory when it is projected in no air resistance environment and why?
2
votes
2answers
459 views
Ski Jumper's vertical velocity after 246.5m record?
What would be the vertical velocity of this ski jumper (ski flyer), after he first touches down, after he breaks the record with a 246.5m jump? What g force would he experience as he slows down?
...
