Question

blocks A and B are connected by an ideal spring or initially at rest on a smooth horizontal Prince a constant horizontal force f equal to 20 minutes and starts acting 1B at time t is equal to zero the displacement of centre of mass of a + b system is 4 second in metres will be​

Answer 1

Answer:

Maximum speed is at equilibrium where

F=kx⇒x=

k

F

Now, F⋅x=

2

1

mv

2

+

2

1

kx

2

or F

k

F

=

2

1

mv

2

+

2

1

k

k

2

F

2

Solving we get,

v=

mk

F

=v

max

Answer 2

Answer:

f =v

........

......

....

..