A 2.00-kg, frictionless block is attached to an ideal spring with force constant

Question

A 2.00-kg, frictionless block is attached to an ideal spring with force constant 300 N/m. At t=0 the block has velocity -4.00 m/s and displacement +0.200 m.

(b)Find the phase angle.

(c) Write an equation for the position as a function of time. Assume x(t) in meters and t in seconds.

Exercise 14.12 Part B A 2.00-kg, frictionless block is attached to an ideal spring with force constant 300 N/m. At t = 0 the block has velocity -4.00 m/s and displacement +0.200 m. = 30 rad Submit My Answers Give Up Incorrect; Try Again; 4 attempts remaining Part C Write an equation for the position as a function of time. Assume z (t) in meters and t in seconds. z (t) In Submit My Answers Give Up

Explanation / Answer

V^2 = k/m.(A^2-Y^2)
16 = 300/2 (A^2 - 0.2^2)
16 = 150 (A^2 - 0.2^2)
16 = 150A^2 - 6.00
22 = 150A^2
A=0.38 m

a= W^2.A
a= 300/2 x 0.38
a=57.4 m/s^2

F=k.A
F=300 x 0.35
F=114.9Newton   

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