SaraNextGen.Com

Two identical blocks  and , each of mass ‘ ’ resting on smooth floor are connected by a light spring of natural length  and spring constant , with the spring at its natural length. A third identical block ‘ ’ (mass ) moving with a speed  along the line joining  and  collides with . The maximum compression in the spring is

a)

b)

c)

d)



Question ID - 51823 | SaraNextGen Top Answer

Two identical blocks  and , each of mass ‘ ’ resting on smooth floor are connected by a light spring of natural length  and spring constant , with the spring at its natural length. A third identical block ‘ ’ (mass ) moving with a speed  along the line joining  and  collides with . The maximum compression in the spring is

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

Initial momentum of the system (block

After striking with , the block  comes to rest and now both block  and  moves with velocity , when compression in spring is maximum

By the law of conservation of linear momentum

By the law of conservation of energy

K.E. of block  K.E. of system + P.E. of system

 

127 votes


127