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PtichkaEL [24]
3 years ago
7

A car, initially traveling at 81.8 mi/h, slows to rest in 7.1 s. What is the car's acceleration?

Physics
1 answer:
maksim [4K]3 years ago
5 0

Answer:

a = -16.9 ft/s²

Explanation:

81.8 mi/hr(5280 ft/mi / 3600s/hr) = 120 ft/s

a = Δv/t = (0 - 120) / 7.1 = -16.9 ft/s²

if the initial direction is taken as the positive direction.

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An automatic dryer spins wet clothes at an angular speed of 5.2 rad/s. Starting from rest, the dryer reaches its operating speed
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