The acceleration vector of a particle in uniform circularmotion a. points tangen

Question

The acceleration vector of a particle in uniform circularmotion a. points tangent to the circle, in the direction ofmotion. b. points tangent to the circle, opposite the direction ofmotion. c. is zero. d. points toward the center of the circle. e. points outward from the center of the circle. AND Without air resistance, an object dropped from a plane flyingat constant speed in a straight line will
a. quickly lag behind the plane. b. remain vertically under the plane. c. move ahead of the plane.
Please give me your insights as to what each response should be.Thank you in advance. The acceleration vector of a particle in uniform circularmotion a. points tangent to the circle, in the direction ofmotion. b. points tangent to the circle, opposite the direction ofmotion. c. is zero. d. points toward the center of the circle. e. points outward from the center of the circle. AND Without air resistance, an object dropped from a plane flyingat constant speed in a straight line will
a. quickly lag behind the plane. b. remain vertically under the plane. c. move ahead of the plane.
Please give me your insights as to what each response should be.Thank you in advance. a. points tangent to the circle, in the direction ofmotion. b. points tangent to the circle, opposite the direction ofmotion. c. is zero. d. points toward the center of the circle. e. points outward from the center of the circle. AND Without air resistance, an object dropped from a plane flyingat constant speed in a straight line will
a. quickly lag behind the plane. b. remain vertically under the plane. c. move ahead of the plane. c. move ahead of the plane.
Please give me your insights as to what each response should be.Thank you in advance.

Explanation / Answer

   d. points toward the center of thecircle.    b. remain vertically under the plane.    Sinc ethere is no force to influence itshorizontal velocity    

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