2-d kinematic question

  • Thread starter rjs123
  • Start date
  • #1
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Homework Statement



Lets say I have a .5kg mass traveling at 1200 m/s in the -x direction with 0 acceleration. The force applied to this mass is (2.3i + .093j)N. I have to find position, velocity, and acceleration at say 1 second after the force is applied. No gravitational force involved.





The Attempt at a Solution



F = ma will give me the acceleration. Should I just consider the force applied in the x direction? 2.3 N? I've only dealt with 1-d kinematics to this point...it seems the y force will only come into play for position...I could be wrong though.
 

Answers and Replies

  • #2
22
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Vector approach is suitable for this kind of problem . resolve the velocities and forces and apply newton's eqn of motion and equations of motion in straight line to solve the velocities and position at every time in x and y direction independently!!!
 
  • #3
90
0
Vector approach is suitable for this kind of problem . resolve the velocities and forces and apply newton's eqn of motion and equations of motion in straight line to solve the velocities and position at every time in x and y direction independently!!!

thanks i see how to do it now.
 
  • #4
22
0
Ur welcome buddy!!!
 

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