Question

K1=2 N/m
K2=4 N/m
m=2 kg
Find time period of oscillation

Answer 1

Answer:

Here the springs are in series combination so,equivalent spring is constant,

K=

k

i

+k

2

k

1

k

2

2000

1500×500

=375N/m

So the work done in slowly pulling down m

2

by 8 cm is,

W=

2

1

K×x

2

=

2

1

×375×64×10

−4

=1.2J