A0.70-kg block is hung from and stretches a spring that is attached to the ceiling. a second block is attached to the first one, and the amount that the spring stretches from its unstrained length triples. what is the mass of the second block?

Mass of the second block is 1.4 kg

Explanation:

When a weight (mg) is displaced from its equilibrium position in a spring mass system, a restoring force (kx) will act on the weight.

so, mg = -kx

where, k is a constant

Mass of block () = 0.70 kg

For one spring mass system,

For the two spring mass system,

divide equation 2 by 1

on further rearranging,

So, mass of the second block is 1.4 kg.

true tan speed = ang vel x radius