Question

fou have some wooden blocks attached with each other given in the figure. Now, you fire a bullet with a certain velocity V. from a distance s from the series of blocks. If the bullet has an acceleration a towards the series then, (a) find an expression for the velocity with which it will hit the first block. What type of acceleration should it have, positive or negative? (b) find the expression for distance it will travel inside the series of blocks within the time interval t after hitting it. (c) If the bullet had an initial speed of 30 m/s with an acceleration of 0.5m/s2 and it stops in 6s after hitting the first block, then how many blocks have been hit by the bullet within this time interval? Consider each block has a width of 0.25m. Page 3

Answer 1

© Vi utat TV wit 205 ) So = Vt-1,00 € Vrutat 0 - 30+ 0 (6) Q = -5 mig Net acceleration : - 5 m/s2 vin't 205 0 (30)-27595 so good: 90 om No of Blocks - Yous = 35) . [360 blocks) 10 25