Posted by Erick on Thursday, May 24, 2012 at 5:15am.
A 1.2 kg block is attached to a horizontal 23 N/m spring and resting on a frictionless
horizontal surface. The block is set oscillating with amplitude 10 cm and phase constant –
π/2. A 2nd block with mass 0.8 kg moving at 1.7 m/s collides inelastically (the blocks stick
together) with the 1.2 kg block when it is at its maximum displacement. Determine the
frequency, amplitude, and phase constant (relative to the original t = 0) of the resulting
motion.

Physics  Elena, Thursday, May 24, 2012 at 5:31pm
m2•v2 =(m1+m2) •v
v= m2•v2/(m1+m2) = 0.8•1.7/(1.2+0.8) =0.68 m/s = v(max)
ω =sqrt{k/(m1+m2)} = sqrt{23/2) = 3.4 rad/s.
v(max) = A1• ω,
A1 = v(max)/ ω = 0.68/3.4 =0.2 m.
ω = 2•π•f,
f = ω/ 2•π = 3.4/2•3.14 =0.54 Hz.
Answer This Question
Related Questions
 Physics  A 4.05 x 102kg block is resting on a horizontal frictionless surface...
 Physics  A 4.07 x 102kg block is resting on a horizontal frictionless surface...
 Physics  A 4.07 x 102kg block is resting on a horizontal frictionless surface...
 Physics  A block has mass 800 g, whose is fasten to a spring with spring ...
 physics  A physics student pulls a block of mass m = 23 kg up an incline at a ...
 physics  A 13.1g bullet is fired into a block of wood at 261 m/s. The block ...
 physics  A 0.940 kg block is attached to a horizontal spring with spring ...
 College Physic  A 1.54 x 102kg block is resting on a horizontal frictionless...
 Physics  An ideal massless spring is fixed to the wall at one end. A block of ...
 physics  In 0.511 s, a 13.1kg block is pulled through a distance of 3.13 m on ...
More Related Questions