A block of mass m = 0.40 kg slides on a horizontal
frictionless table with a speed v = 0.50 m/s.
It then runs
into and compresses a spring of spring
constant
k = 750 N/m. When the block is momentarily
stopped by
the spring, by what distance d is the spring
compressed?
Sample Problem 7-8
Kf – Ki = - ½
kd2
0 – ½ mv2 =- ½
kd2
d = v sqrt (m/k)
