Question

A block of mass 'm' , lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant 'k' . The other end of the spring is fixed, as shown in the figure. The block is initially at rest in its equilibrium position. If now the block is pulled with a constant force F,  the maximum speed of the block is

 

​

Answer 1

Answer:

Maximum speed is at mean position(equilibrium). F=kx

x=

k

F

W

F

+W

sp

=ΔKE

F(x)−

2

1

kx

2

=

2

1

mv

2

−0

F(

k

F

)−

2

1

k(

k

F

)

2

=

2

1

mv

2

⇒V

max

=

mk

F

hope it helpful to you.....