The G-forces will multiply your body weight, making it impossible to hold on; this is why hooking your arms through the harness is essential.
1	The	the	DET	DT	Definite=Def|PronType=Art	4	det	4:det	Discourse=causal-cause:31->32:0|Entity=(30-event-new-cf1-6-disc(31-abstract-new-cf6-4-sgl
2	G	g	NOUN	NN	Number=Sing	4	compound	4:compound	SpaceAfter=No|XML=<w>
3	-	-	PUNCT	HYPH	_	2	punct	2:punct	SpaceAfter=No
4	forces	force	NOUN	NNS	Number=Plur	6	nsubj	6:nsubj	Entity=31)|XML=</w>
5	will	will	AUX	MD	Number=Plur|Person=3|VerbForm=Fin	6	aux	6:aux	_
6	multiply	multiply	VERB	VB	VerbForm=Inf	0	root	0:root	_
7	your	your	PRON	PRP$	Case=Gen|Number=Sing|Person=2|Poss=Yes|PronType=Prs	9	nmod:poss	9:nmod:poss	Entity=(32-abstract-new-cf7-3-sgl(5-person-giv:inact-cf2-1-ana)
8	body	body	NOUN	NN	Number=Sing	9	compound	9:compound	Entity=(33-object-new-cf8-1-sgl)
9	weight	weight	NOUN	NN	Number=Sing	6	obj	6:obj	Entity=32)|SpaceAfter=No
10	,	,	PUNCT	,	_	11	punct	11:punct	_
11	making	make	VERB	VBG	VerbForm=Ger	6	advcl	6:advcl	Discourse=explanation-motivation:32->33:0
12	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	obj	11:obj	Entity=(34-event-new-cf5-1-cata)
13	impossible	impossible	ADJ	JJ	Degree=Pos	11	amod	11:amod	_
14	to	to	PART	TO	_	15	mark	15:mark	Entity=(34-event-acc:com-cf5-2-coref
15	hold	hold	VERB	VB	VerbForm=Inf	13	xcomp	13:xcomp	_
16	on	on	ADP	IN	_	15	obl	15:obl	Entity=34)30)|SpaceAfter=No
17	;	;	PUNCT	:	_	28	punct	28:punct	_
18	this	this	PRON	DT	Number=Sing|PronType=Dem	28	nsubj:outer	28:nsubj:outer	Discourse=causal-result:33->30:0|Entity=(30-event-giv:act-cf1-1-coref)
19	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	28	cop	28:cop	_
20	why	why	ADV	WRB	PronType=Int	28	advmod	28:advmod	_
21	hooking	hook	VERB	VBG	VerbForm=Ger	28	csubj	28:csubj	_
22	your	your	PRON	PRP$	Case=Gen|Number=Sing|Person=2|Poss=Yes|PronType=Prs	23	nmod:poss	23:nmod:poss	Entity=(20-object-giv:inact-cf3-2-coref(5-person-giv:act-cf2-1-ana)
23	arms	arm	NOUN	NNS	Number=Plur	21	obj	21:obj	Entity=20)
24	through	through	ADP	IN	_	26	case	26:case	_
25	the	the	DET	DT	Definite=Def|PronType=Art	26	det	26:det	Entity=(27-object-giv:inact-cf4-2-coref
26	harness	harness	NOUN	NN	Number=Sing	21	obl	21:obl:through	Entity=27)
27	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	28	cop	28:cop	_
28	essential	essential	ADJ	JJ	Degree=Pos	6	parataxis	6:parataxis	SpaceAfter=No
29	.	.	PUNCT	.	_	6	punct	6:punct	_
