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SCAN0015

# SCAN0015 - 3 A ball is rolled horizontally off a table with...

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Unformatted text preview: 3. A ball is rolled horizontally off a table with an initial speed of 2. 4 m/s. A stop watch measures the ball’s trajectory time ﬁom table to ﬂoor to be 0.30 s. 'U' a. How far away from the bottom of the table does the ball land? a . b. How high is the table top above the ﬂoor? h c. What is the speed of the ball just before it hits the ﬂoor? 6“ max = '2ng m/s (W03: 0 R: vex—t = 2 e\(c>.=3g:>) lOﬂZMj 1,, 9r some, ”4:29 am we“ mm Q 2 "‘ ‘r “’1“ => h= th<o~331=lm Q- (v’xr-{qum'gthlMls «:3: ﬁrms gt 2 omq.<g(o.33 =—~2,Ci‘+m/\$ 2W: ibgt‘Rthgt" 2‘3%OME, {l 4. An airplane has a speed of 225 mi/h at an altitude of 1200 ft. The airplane is diving at an angle of 20 degrees below the horizontal when a relief package is relea ed. 3: 3 3O‘Y‘Vs (Note. g= 32. 2 ﬁ/s2 in English units.) 225 m th<5190¥txh3 cos 6 a. How long is the package in the air? b. What is the horizontal distance from the release point to the impact point on the ground? 0. What is the speed of the package just before it hits the ground? 0t. (vex: 330 mac; *4 3105:1215 W035 = ~330Mm20 = *ll3¥‘tls ‘ H —— t —~u (54/ 2:: 936+ {Lest 3- 9 ~30 _ tacos: We of 3 5 1 \Loo —= ﬁt\1.::">“(—\le Vt DY \LoA‘K —\~\\2,'t—-\1oo:0 m» am 322. ‘9. R: @911 ; 310(53132jli00 Sitl Q“ (U12Wo’x : 3‘0 Sit/s 3 ._ .— . .' ~ ‘g := “Vs: my <31 = was (32,2305 ‘ \‘U\ =' \S atoztgoo" =‘ Ll3l Sit/SJ - 300 W? ...
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