Question

AP PHYSICS 1 - UNIT 4 - Momentum and Impulse Problem Set 12-1 (part 2) Due 11/20 Call the mass of the coconut m, the height of the tree above the person's headh, and the force of the coconut on the head F (c) Derive an expression for the time of collision between the coconut and the head. Express your answer in terms of given variables and fundamental constants. (d) Another identical coconut falls from a tree of height 2h. It is in contact with the person's head for the same time the first coconut. Is the force applied by the second coconut on the person's head... o Double the force applied by the first coconut o More than double the force applied by the first coconut o Less than double the force applied by the first coconut Justify your answer with both words and equations.

Answer 1

Mass of he coconuk, m Height of he ree h For ce head by he eo On Now he ocon sfaks Rhem est hen if hit he man's head Ahen be it's elecity initial vedoeify Cu-o BAavitakioral aecelerakion 28h monenkum he coco nuk after hit charge in AP = A be Ahe ime of collision e he Cokack hime hen with she head

AP F AP F. ho he head hen- And, be he ine fo meceh h 21 NoW PAbe ime of eonkod m/2gh Now F. 23h. Same Co tonut PallingPen heig 2, ard collision he Roee OA Rime with head m2gh F Ahe person's head he nee applied SoNow On pehe paerious fesre imes Answer is Less han double he oree opplred by Pinst coconuA 4he