A 12 kg aluminum toolbox is dropped from rest onto a large wooden beam. The box travel 0.2 m before contacting the beam. After impact, the box bounces 0.05 m above the beams surface. Approximately what impulse does the beam impart on the box?

A. 8.6 N. s
B. 12 N. s
C. 36 N. s
D. 42 N. s

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when