Exercise QD 2n 3mar g L ZU

5 p Q e I3

LV VQVp

First collisionPCLM 2m u 3m x2u 2mvpt3 mu

8 mu Gmu 2mVp 3 nu

mu 2h Vp

Vp uz

collision with wall

Vo 3 u

x e2 L 3

P Q

L Lp VQ

Z 3m

PCLM Zuxtz 3m x 3 u 2nVpt3nVQMu t Zhu 2 Up c 3mV3u 2Vpt3 Voi

Momentum-KE

Find e for P and Q

First collision e Speed of Sep U ISpeed of app Gu

I2 LGu 4

Back to 2nd collision

e Vp VqFu iz U

6u

24Vp Vq

320 wtf 5Vp250 5Vp8

Up Su8

UE 5J Vq

vq 5f Ea Iz

7 speed at groundO 4h VE v't 2as

2 0 t 2 9.8 0 4

12 9.8 0 4 2 8

Take off after first bounceU O 7 2.8 CGL

25

At top of flight to

v2 u t 2as

O Egs 19.6 s

s 475 o 196M

19.6

1st bounce to 0.196 in

Speer at 2nd landing take off speedafter frost landing

4125

Take off after 2nd land y

u 4925 0 7

Heights v2 u't 2 as

0 42,1 0 7 19.6 s

s 415 0 75 0.0960419.6

Height 0.096

Continues as a geometric progressionwith each height 0.49 previous height

C Gp a 0.196 r o 49

So i 0.196I O 49

Total Dost o 4 t Z SeO 196O t 2x o.si

1.17 m

Huk Ex 4D 04 6,8