The answer is B. Since the first collision is elastic, both momentum and kinetic energy can be conserved within the system. The coefficient of restitution for an elastic collision is one, and it is often referred to as a perfectly elastic collision. Conversely, in a perfectly inelastic collision, kinetic energy is lost as it transforms into another form, such as internal energy. While momentum remains conserved in an inelastic collision, kinetic energy is not.
It is 8 kilograms. I had to provide more text, so here it is.
Answer: damping coefficient = 1.5×10^5Ns/m
Explanation:
Refer to the attached file for the solution
a. Time = 16.11 s b. Gauge Pressure = 1009400 Pa = 1 MPa c. Absolute Pressure = 1110725 Pa + 1.11 MPa d. Force = 2.22 MN