How Do Forces Affect Motion in 2D Kinematics?

[rjs123]

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.

 

[Freeze3018]

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!

 

[rjs123]

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.

 

[Freeze3018]

Ur welcome buddy!