A spring-block system is resting on a frictionless floor as shown in the figure. The spring constant is 2.0 Nm -1 and the mass of the block is 2.0 kg. Ignore the mass of the spring. Initially the spring is in an unstretched condition. Another block of mass 1.0 kg moving with a speed of 2.0 collides elastically with the first block. The collision is such that the 2.0 kg block does not hit the wall. The distance, in metres, between the two blocks when the spring returns to its unstretched position for the first time after the collision is_________.
Text Solution
Verified by Experts2.09
(2.09)
For collision :
using com 
1x2=1xu + 2xv
Using e 
2 = -u + v
time taken for the block to came to the unstretched position of spring for the first time after the collision
distance between blocks = 
m = 2.09 m (taking 
3.14)
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