• 2022-06-03
    A mass m is resting on a horizontal frictionless surface attached to a spring of spring force constant k . At time t = 0 , the mass is given a sharp blow, causing it to move the right with speed v . The next time the mass will have this speed is _________________ .
    A: [img=87x39]1802eac7b3965ae.png[/img]
    B: [img=91x46]1802eac7bbd36d7.png[/img]
    C: [img=85x45]1802eac7c49f55d.png[/img]
    D: [img=109x49]1802eac7d08bb09.png[/img]