Q1. To stretch a relaxed biceps muscle 2.30cm requires a force of 25 N. Find the Young's modulus for muscle tissue assume it to be a uniform cylinder of length 0.24 m and cross-sectional area 51 cm2.
Q2. After a 0.380-kg rubber ball is dropped from a height of 1.95m, it bounces off a concrete floor and rebounds to a height of 1.35 m.
find out the magnitude and direction of the impulse delivered to the ball by the floor.