A 334 g mass is connected to a light spring of force constanct 3 N/m and it is free to oscillate on a horizontal, frictionless track. The mass is displaced 4 cm from the equilibrium point and released from rest.A.) Find the period of the motion in units of s.B.) What is the maximum speed of the mass in units of m/s.C.) What is the maximun acceleration of the mass in units of m/s^2.

Respuesta :

Explanation:

Given that,

Mass, m = 343 g = 0.343 kg

Force constant, k = 3 N/m

Displacement in the mass from equilibrium position is  4 cm

(a) The time period of the mass that oscillates is given by :

[tex]T=2\pi \sqrt{\dfrac{m}{k}} \\\\T=2\pi \sqrt{\dfrac{0.343}{3}} \\\\T=2.12\ s[/tex]

(b) Firstly lets find the angular frequency. It is given by :

[tex]\omega=\sqrt{\dfrac{k}{m}} \\\\\omega=\sqrt{\dfrac{3}{0.343}} \\\\\omega=2.95\ rad/s[/tex]

Now the maximum speed of the mass in SHM is given by :

[tex]v=A\omega\\\\v=0.04\times 2.95\\\\v=0.118\ m/s[/tex]

(c) The maximum acceleration of the mass is given by :

[tex]a=A\omega^2\\\\a=0.04\times (2.95)^2\\\\a=0.3481\ m/s^2[/tex]

Hence, this is the required solution.