Un objeto de masa m está en reposo en equilibrio en el origen. en t=0 se aplica una fuerza F(t) con componentes:

donde k1,k2 y k3 son constantes. Calcule losvectores de posición r(t) y velocidad v(t) en función del tiempo.

How would a small bar magnet be oriented when placed at position x?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?

A15 ohm resistor and a 25 ohm resistor are connected in a series to a 60 volt battery. what is the power used by each device