# Physics

posted by
**Jalopy**
.

he graph of the velocity of a mass attached to a horizontal spring on a horizontal frictionless surface as a function of time is shown below. The numerical value of V is 5.48 m/s, and the numerical value of t0 is 8.97 s.

a) What is the amplitude of the motion in m?

b) What is the acceleration of the oscillator mass at 5.56 s in m/s2? (Remember: Arguments to trig functions must be in radians.)

c) What is the position of the oscillator mass at 6.38 s in m? (Remember: Arguments to trig functions must be in radians.)

d) If the mass attached to the spring is 5.13 kg, what is the spring constant in N/m?

e) Still assuming the mass is 5.13 kg, What is the potential energy stored in the spring at 5.79 s in Joules? (Remember: Arguments to trig functions must be in radians.)