The final answer should be in the format of "tolerance of ± in the third significant digit."
A car is traveling around a circular track of a 730-ft radius. If the magnitude of its total acceleration is 11 ft/sec2 at the instant when its speed is 50 mi/hr, determine the rate at which the car is changing its speed.
at = ± _________ ft/sec2
Write the vector expression for the acceleration a of the mass center G of the simple pendulum in both n-t and x-y coordinates for the instant when θ = 33° if θ˙ = 2.41 rad/sec and θ¨ = 4.445 rad/sec2.
a = (_____ en + _____ et) ft/sec2
a = (_____ i + ______ j) ft/sec2
1)
2)
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