X' d8\FA?X ( @ (//(  0/80@0?/8 0( ?G@POWOXOP?H0@/7@O_``h_hPX 0(P_oppxow_g@O/8'' 7p`o?G/7 0??H/8`/o?GOX@H0?/pOW?H/8 7OP?G/7( P0@PX@O0@ 0O @H/@' 00@@P0?'_OP@H( 7/7' ^^^^^^^^^^^^^^^^^^^^^^^^^^TeeBBBBeTT^^^^^^^eBDJ33333JJDBeZ^^^^TD33==#####==3JDBT^^^^eJ=###=3DeZ^^TB3# #=3JBZ^^T3#  #=JBT^^J# Sll #=JBZ^T# %,68??86,/@A*< ##45('.6787-9%:;*<=#$+&,--.,/01)2 3 $%&&'%($!)* ##  !"#     ??du(@sound0X.wav boink1.wav xVr6Uv?_E3mmnmŲD x AJ^U)t/hMGI^\`po~{Oz+}c.zWv3\Br c+K̾x3 k>1+{d؜D.ƃh ?V`0r',xXN&ܺ Fﮯox8}ar#frt  1_qKўϰkW e¶I&K(3r(Wr̵֩),N0Sz8PӉRPG(4.Gb;Xm*TP,ima&LMuvrNe`Ee: mO9Q>օDa X;&RgNvzA F:'kj'&6ͯis]> יn1m_66Ӯ?+A#aC {oҶնnL꺔/nfn/t5hCcN7n/.6_t$uP|YM3?AsE|W2N#?sprite0  xA E˞uމq3/ԝ`!~I>>6N52oC6 jǑB')1ᲒKRpX I?(^ē*15 |q`EHR򭐋$T{%dWꍢ·p࣒|)&ujsprite2 xsuc3 b&(fd 0V7afont0Arial object0 kaction_set_gravity2700.1000000[ show_info()0000000s action_bounce01000000 action_sound00000000maction_move_tomouse_xmouse_y000000cvspeed y-yprevious000000maction_move_toxy-vspeed000000object1  graph_point  controller ci0000000-action_set_alarm30000000 ci1000000action_create_object 2250+i20+object0.y/500000action_create_object 2250+i250+5*object0.vspeed00000-action_set_alarm30000000daction_if_variablei39020000000000000action_kill_object00000000ci000000000000000 action_font 00000000action_draw_textPosition20010000000action_draw_textVelocity20025000000  action_color 00000000action_draw_line2502506402500000room0         @``XGame InformationX{\rtf1\ansi\ansicpg1252\deff0\deflang3081{\fonttbl{\f0\fnil\fcharset0 Arial;}{\f1\fnil MS Sans Serif;}{\f2\fnil Arial;}} {\colortbl ;\red0\green0\blue0;} \viewkind4\uc1\pard\cf1\b\fs30 Position, velocity and acceleration\fs24 \par Tony Forster November 06 \par \b0\i\fs20 May be copied with acknowledgement of authorship\i0\fs24 \par \par Graphed position and velocity for a bouncing ball \par \par You can move the ball by clicking and dragging \par \par Press escape to start \par \par Note the axis system for GameMaker inverts the usual vertical axis, down is positive \par graphing the position: \par \cf0\f1\fs16 create instance of object graph_point at position (250+i,20+object0.y/5)\cf1\f0\fs24 \par graphing the velocity: \par \cf0\f1\fs16 create instance of object graph_point at position (250+i,250+5*object0.vspeed)\cf1\f0\fs24 \par \f2 \par \b\f0 Challenges:\b0 \par Add friction in motion (air drag) \par To correctly model air drag, what is the formula? \par Add friction on bouncing \par Graph the acceleration, what units is it in? What happens when it bounces? \par Graph potential energy (mgh) and kinetic energy (1/2mv\'b2) on the same axes \par What is m?\f2 \par } Spritessprite0sprite1sprite2Soundssound0 BackgroundsPathsScripts Fonts font0 Time LinesObjectsobject0object1 graph_point controllerRoomsroom0 Game Information Global Game Settings