Short Answer Instructions: Completely answer each problem. SHOW ALL WORK 1. A 40

Question

Short Answer Instructions: Completely answer each problem. SHOW ALL WORK 1. A 400 kg polar bear is attacking a penguin's snow fort, sliding across the ice with a speed of 3.5 m/s Luckily the penguin has a stockpile of snowballs, each with a mass of 6 kg. a) (2 pts) The penguin can throw a snowball with a speed of 22 m/s. Assuming the snowballs stick to the polar bear, what is the speed of the polar bear after the penguin throws one snowball at it? b) (2 pts) The penguin decides it will be easier to make one giant snowball to throw at the polar bear to stop it. Assuming the penguin can throw a giant snowball at the same speed of 22 m/s, what must the mass of the snowball be to completely stop the polar bear? c) (2 pts) A puffin disagrees with the penguin's giant snowball idea and wants to build a cannon to shoot one 6 kg snowball at the polar bear. What velocity must a 6 kg snowball have in order to completely stop the polar bear?

Explanation / Answer

a) 400 ( 3.5) - 6(22) = ( 406) v

v = 3.12 m/s

b) 400 (3.5 ) = 22( m)

m = 63.64 kg apprx

c) 400( 3.5) = 6 (v)

v= 233.33 m/s apprx

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.