Question

At a certain instant a particle (mass=0.5 kg) is moving in the +x direction with velocity 14 m/s. During the next 0.14 seconds a constant force acts on the particle, with Fx = −8 N and Fy = 5 N. What is the magnitude of the velocity of the particle (in m/s) at the end of this 0.14 second interval?

Answer 1

@saifoo.khan @cwrw238

Answer 2

@dpaInc @robtobey

Answer 3

@DaebakJoo

Answer 4

@Preetha

Answer 5

As a general approach, I would suggest you 1) view the system by its components. Leave x and y separate and combine them later for your total velocity and 2) boil this problem down to kinematics, which I'm sure you've already covered! :) For example, Fx / m = ax = 16 m/s^2 right? So you have time, initial velocity, and acceleration...and you want to find your end velocity in the x direction.

Which formula is applicable?