A 1.40-kg block is on a frictionless, 25 ∘ inclined plane. The block is attached to a spring (k = 30.0 N/m ) that is fixed to a wall at the bottom of the incline. A light string attached to the block runs over a frictionless pulley to a 40.0-g suspended mass. The suspended mass is given an initial downward speed of 1.20 m/s .
How far does it drop before coming to rest? (Assume the spring is unlimited in how far it can stretch.)

The small mass will drop below 11.6cm before coming to rest

Explanation:

Equating the Tension of both the two masses, and inputting the given parameters adequately...

Kindly check ATTACHED PICTURE for complete solution.

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it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me