Question

Two blocks eah of mass 1 kg are connected by a spring of spring constant k 100 N / m  . When spring is in natural length, each block is projected in opposite direction with speed of 0 v 10 m / s  . The work done by spring on each block upto maximum compression is 1) 100 J 2) –100 J 3) 50 J 4) –50 J

Answer 1

Answer:

- 50 J

Explanation:

At maximum compression, speed of block is zero. If w is the work done by

spring on each block, then

2W = Δ KE

2W= 0 - 2× 1/2 mv₀²

W= -1/2 mv₀²

  = -1/2 × 1 × 10²

  = -50 J

Answer 2

Answer:

-50J

Explanation:

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