I need help with this question as well: If the baseball in example 4.5 is caught by a person whose hand recoils 0.30 m, calculate the average force on the person's hand. (The initial speed of the baseball is 44.7 m/sec and its mass is 0.50 kg.)(adsbygoogle = window.adsbygoogle || []).push({});

This is what i have, but i'm not sure if it's right...

w=mg i'm not even sure if i have to convert that or not

w=(0.50 kg)(9.8 m/sec2)

w=4.9N

then i'm not sure how to represent kenitic energy on here but here it goes,

KE=(1/2mv)2 ..(squared)

KE= 1/2(4.9 N)(44.7 m/sec)2

KE= 4895.32 J

thats what i have, but im not sure if i should convert mass to weight if not then go i just put the 0.50 in the KE equation? Any help would be appreciated.

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# Homework Help: Average force on a baseball

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