a skydiver slows from 52 m/s to 8m/s in 0.80 s. what is the magnitude of her deceleration and the distance.?

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i'll be really glad if you'll help me answer this question guys...

2006-12-01 18:18:53 · 2 answers · asked by Hilary 1 in Science & Mathematics ➔ Physics

a = Δ V / Δ t = (8 - 52) / 0.8 = - 55 m/s/s (net)

x(0.8) = 0.5 a * t * t + v0 * t + x0 = 6.4 m
x0 = 0m, v0 = 52 m/s, a = -55 m/s/s, t = 0.8s

2006-12-01 18:25:23 · answer #1 · answered by feanor 7 · 0⤊ 0⤋

55 meters per second squard to the left.

2006-12-01 18:27:08 · answer #2 · answered by piazzao 1 · 0⤊ 0⤋