Question

# One end of a cord is fixed and a small 0.550-kg object is attached to the...

One end of a cord is fixed and a small 0.550-kg object is attached to the other end, where it swings in a section of a vertical circle of radius 2.50 m, as shown in the figure below. When

θ = 18.0°,

the speed of the object is 6.50 m/s.

An object is swinging to the right and upward from the end of a cord attached to a horizontal surface. The cord makes an angle θ with the vertical. An arrow labeled vector v points in the direction of motion.

(a) At this instant, find the magnitude of the tension in the string.
N

(b) At this instant, find the tangential and radial components of acceleration.

 at = ____m/s2 downward tangent to the circle ac = _____m/s2 inward

(c) At this instant, find the total acceleration.
inward and below the cord at _____ °

(d) Is your answer changed if the object is swinging down toward its lowest point instead of swinging up?

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