Question

A 4.1 kg penguin runs onto a huge sheet of frictionless Antarctic ice. At t=0 it is at x=0 and y=0 with an initial velocity of 0.57 m/s along the positive x-axis. It slides while being pushed by the wind with a force of 0.31 N directed along the positive y-axis. Calculate the magnitude of the penguin's velocity at t = 9.68 s.
(in m/s)

Answer 1

i would explain it to you but it will take a long time. i will be back in 20 min then do it
hang tight

Answer 2

The x-component of the velocity, Vx (0.57 m/s) will not change with time.

The y-component:
Use F=ma to calculate the acceleration in the y-direction. (F=0.31 N, m=4.1 kg)
Initial velocity, v0=0
velocity Vy(t) as a function of time in seconds
Vy(t) = v0.t + (1/2)at²

Combine vectorially the velocities Vx and Vy(t) to get the velocity at any moment in time t.

Answer 3

thanks

Answer 4

You're welcome.