# Change in linear Momentum and thrust

Holding a long rope by its upper end, you lower it onto a scale. The rope has a mass of 0.169 kg per meter of length, and is lowered onto the scale at the constant rate of 1.38 m/s. Calculate the thrust exerted by the rope as it lands on the scale.

What does the scale read when 0.233 kg of rope is on the scale (corresponding to a weight of 2.29 N)?

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#### Solution Preview

As the rope moving with a velocity of 1.38 m/s lands on the scale it comes to rest. There is a change in momentum and as per Newton's second law a force ...

#### Solution Summary

The problem is solved using Newton's second law.

$2.49