Question

If the object is starting from its stationary position, that is, u = 0, then work is equal to
(i) 1/2 mv
(II) 1/4mv
(III) 2mv
(iv) 3mv​

Answer 1

From conservation of energy,

Loss in kinetic energy of block=Gain in potential

energy of spring

1

1

mv-,ml,-

3mv

8

2

mv2

k= 4x2

4x2

Answer 2

Answer:

2mv i hope it may help to you good luck