Online Homework due by 12 AM tonight

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The discussion revolves around two physics homework problems related to projectile motion and kinematics. One problem involves calculating the distance a shell hit after being fired from a gun during World War I, while the other concerns the speed of a baseball rolling off a desk. Participants express frustration about not knowing the necessary equations to solve these problems and seek help from others. There is a suggestion to review textbooks and previous threads for guidance. The urgency of completing the homework before a deadline is emphasized, as one participant has an upcoming PSAT exam.
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Homework Statement


During World War I, the Germans had a gun
called Big Bertha that was used to shell Paris.
The shell had an initial speed of 1.13 km/s at
an initial inclination of 42.4Degrees to the horizontal.
The acceleration of gravity is 9.8 m/s2 :
How far away did the shell hit? Answer in
units of km.

How long was it in the air? Answer in units
of s.

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An autographed baseball rolls off of a 0.81 m
high desk and strikes the floor 0.28 m away
from the desk.
The acceleration of gravity is 9.81 m/s2 :
How fast was it rolling on the desk before it
fell off?
Answer in units of m=s.

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Homework Equations


I don't know


The Attempt at a Solution


I'm not going to try an answer and get deducted points from this online HW system. Please answer first and then we can discuss these later. Hopefully later tomorrow. I have my PSATS tomorrow and I really need to finish this up and study for em. Thanks
 
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I'm not going to try an answer and get deducted points from this online HW system.

Doesn't mean you can't show us your work. We will tell you if you're doing things right.
 
I can't show the work if I don't know the equations
 
Open your textbook and study the chapters then come back to us with an attempt.
 
I was never given a Pre-AP Textbook when I went advanced from Academic. My Academic book is poorly written as if its more like a Physics for Dummies book
 
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