Projectile kinematics sticker for me

[triggerhorse]

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]

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

 

[sArGe99]

Kinematic equations.. There is no acceleration in this case.

 

[lanedance]

based on the question though i doubt it, i'd assume it experiences gravity... triggerhorse can you elaborate?

 

[sArGe99]

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.

 

[triggerhorse]

Thanks for your help so far. I am going to get help at school today.