1. Suppose several forces are acting upon a mass m. The force F in F=ma refers t

Question

1. Suppose several forces are acting upon a mass m. The force F in F=ma refers to A) any particular one of the forces acting on m. the vector sum of all the forces acting on m. C) the force of friction acting on m. D) the arithmetic sum of all the forces acting on m. 2. A steel ball is tied to the end of a string and swung in a horizontal circle at constant speed. Complete the following statement: The direction of the acceleration of the ball is always A) perpendicular to the circle ) toward the center of the circle C) tangent to the circle D) radially outward from the circle

Explanation / Answer

1)Suppose several forces are acting upon a mass. the F in F=ma refers to

answer is (b) the vector sum of all the forces.

2)A steel ball is tied to the end of a string and swung in a vertical circle at constant speed. Complete the following statement: The direction of the acceleration of the ball is always

answer is toward the center of the circle. option B

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