A 525 kg block starts at the top of a 121 m long incline, Ask an Expert

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A 5.25\; kg block starts at the top of a 12.1\; m long incline that has an angle of 10\deg to the horizontal. The block then slides out on a horizontal frictionless surface and collides with a 7.11 kg block in an inelastic collision in which the blocks stick together. The blocks then slide to the right onto a frictional section of track as a result of the collision.

What was the velocity of the 5.25\; kg block at the bottom of the ramp?

How much Kinetic Energy was lost in the collision?

How far do the blocks slide to the right on the frictional surface before stopping if the coefficient of kinetic friction is {\mu}_k = 0.18

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