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A car drives horizontally off a 70 -high cliff at a speed of 25 Ignore air resistance?
Wiki User
∙ 14y ago
i assume you want the distance the car travels in the x-direction while it falls.
x = x0 + v0t + 1/2at^2 y = y0 + v0t + 1/2at^2
first, solve for the time it takes for the car to fall 70 feet (y-direction): 70 ft = 0 + 0 + 1/2 * 32.2ft/sec^2 * t^2
solving for t = sqrt(2 * 70 / 32.2) = 2.1 s
now, since we know how long it takes the car to fall, we can determine how far in the x-direction the car moves during its descent: convert 25 mph to ft/sec
25mi/hr * 5280ft/mi * 1hr/60min * 1min/60sec = 36.7 ft/sec x = 0 + (36.7 ft/sec * 2.1 sec) + 0 = 77.1 ft.
Wiki User
∙ 14y ago
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