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Projectile kinematics sticker for me

I know that an object is thrown at a certain initial horizontal speed (m/s). I need to calculate the object's velocity (magnitude and direction) after a certain amount of time (seconds.) How would I do this? What formulas would I use? The actual question is: a calculator thrown at initial horz speed of 24m/s and calculate velocity(mag &direction) after 4 seconds.
 

lanedance

Homework Helper
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hi triggerhorse, welcome to PF

generally you have to give an attempt at a solution and people will offer help...

I would start by writing the forces on the calculator
 
133
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Kinematic equations.. There is no acceleration in this case.
 

lanedance

Homework Helper
3,304
2
based on the question though i doubt it, i'd assume it experiences gravity... triggerhorse can you elaborate?
 
133
0
based on the question though i doubt it, i'd assume it experiences gravity... triggerhorse can you elaborate?
But only horizontal velocity is given, I presume its not projectile motion.
Don't think this much data is enough to describe projectile motion.
 
Thanks for your help so far. I am going to get help at school today.
 

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