Question

18. What was the kinetic energy of the arrow before it hit the blo 19. What was the kinetic energy of the arrow/block system after the hit? 20. How much work was done by the arrow penetrating the block? Arrow 21. What was the average force of the arrow on the block during penetration? Mr. Gasomo (Rev 5/15/19) Student Name: 25. The hoop rolls into some sand and stops after 1.50 seconds. What was the torque exerted on the hoop by the sand? Answer: Lallee to change the spin rate of a body is called: al at ettha_(2 words) art lll: Problems An archer shoots a 75.0g arrow into a stationary 1000g block of wood. At the time of impact, the arrow was going 55 m/s. The arrow buries itself 5.50 cm into the wood and the arrow and block fly off. Answer the following questions. Show work and watch your units 16. What is the initial momentum of the system? 1075k 43k 17. What is the final velocity of the arrow/block system?

Answer 1

2 1,6 mi Atter cotlnion Consetied momentun 1구 ヂ 4,12 S

K.E 113,44丁 14, K ava 19 18.45. N