Friday

February 27, 2015

February 27, 2015

Posted by **Anand** on Monday, April 9, 2012 at 8:38pm.

(a) If the force constant of the spring is 20.0 N/m, determine the period.

_____s For this one I tried 2*pi*sqrt(1.7/20) but it said my answer differed from the correct answer by more than 10%.

(b) If the force constant of the spring is 20.0 N/m, determine the amplitude of the motion.

_____cm For this one I tried -kx = 3 sin(2πt) --> x = (-3/k) sin 2πt ---> Amplitude = 3/k = 3/20 = 0.15 m = 15 cm but it said I was off by 100%.

Any help would be appreciated!

- College Physics -
**Elena**, Tuesday, April 10, 2012 at 2:50pmFrequency will be the driving frequency

ω = 2π (s^-1),

T = 2•π/ ω = 1 s.

Amplitude

A = (F/m)/(ω^2 - ω(o)^2)=

=(F/m)/(ω^2 - k/m)=

= (3/1.7)/(4•π ^2 - 20/1.7) = 0.064 m.

**Answer this Question**

**Related Questions**

Forced Oscillation - drwls => I need your help =) - A 2.00kg object attatched...

physics - A 4 kg block is pushed by an external force against a spring with ...

physics - A 7 kg block is pushed by an external force against a spring with ...

PHYSICS - A 0.49 kg object is attached to a spring with a spring constant 167 N/...

Physics - a)An object on a frictionless surface forms an angle of 27° with the ...

physics - A spring (spring 1) with a spring constant of 520N/m is attached to a...

physics - a block of mass 0,5kg is attached to a spring .The spring is ...

College Physics - A spring fixed at one end is compressed from its relaxed ...

Math - Evaluate *Note - We have to find the exact value of these. That I know to...

physics - an object is attached to the lower end of a 100-coil spring hanging ...