Complete the following statement: The term net force describes most accurately (
ID: 1567872 • Letter: C
Question
Complete the following statement: The term net force describes most accurately (A) the mass an object (B) the quantity causing a displacement of an object (C) the quantity causing a change in the velocity of an object (D) the inertia of an object (E) a change in the acceleration of an object. Which one of the following terms is used indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? (A) angular displacement (B) equilibrium (C) momentum (D) inertia (E) force The wheels on a moving bicycle wheel have both translational (or linear) and rotational motions. What is meant by the phrase "a rigid body, such as a bicycle wheel, is in equilibrium?" (A) The body cannot have translational motion, but it can have rotational motion. (B) The body can have translational motion, but it cannot have rotational motion. (C) The body cannot have translational or rotational motion of any kind. (D) The body can have translational and rotational motions, as long as its translational acceleration and angular acceleration are zero. (E)The body must be at rest. Which one of the following statements describes the condition(s) for which a rigid body is in equilibrium? (A) Each external force may be non-zero, but the sum of the forces must be zero. (B) Each external torque may not be non-zero, but the sum of the torques must be zero. (C) The sum of the externally applied forces must be zero, and the sum of the externally applied torques must be zero. (D) Each external torque acting on the body must be zero. (E) Only internal forces can be present.Explanation / Answer
5) correct option is (c)
from Newton second law F = ma = m(v-u)/t
6) correct option is (D)
Newton first law tells about inertia,i.e untill and unless external force applied on body , tendency of body is remains same
7) correct option is (D)
equillibrium condition , net force zero, net torque zero
8) correct options are (A),(B),(C)