Question

B A spring of stiffness 1 kN/m is attached
to a block of mass 4 kg on a surface that
has frictional co-efficient 0.4. The spring
is compressed and released, and the
block accelerates at 2 m/s2 just as it is
released. The work done in compressing
the spring is:​

Answer 1

Answer:

B A spring of stiffness 1 kN/m is attached

to a block of mass 4 kg on a surface that

has frictional co-efficient 0.4. The spring

is compressed and released, and the

block accelerates at 2 m/s2 just as it is

released. The work done in compressing

the spring is: