What braking force is needed to stop a 8500kg car going 72m/s in 4 seconds?

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What braking force is needed to stop a 8500kg car going 72m/s in 4 seconds?

Please show your work, if possible. Thanks.

2006-10-05 17:11:14 · 3 answers · asked by myfreecell 1 in Education & Reference ➔ Homework Help

This is good, I need to review for my physics test as well!

a = v/t
a = 72/4 = 18 m/s2

f = ma
f = 8500 * 18
f = 153,000 N

2006-10-05 17:14:57 · answer #1 · answered by pdate07 2 · 0⤊ 0⤋

8500kg! What kind of car are you driving?

2006-10-05 17:18:01 · answer #2 · answered by charley128 5 · 0⤊ 0⤋

D-uh Superman ?

2006-10-05 17:23:19 · answer #3 · answered by Beyboo 3 · 0⤊ 0⤋