I- Multiple Choice. Encircle the letter that corresponds to the correct answer. 1. What is always true about a body in equilibrium? a) It is at rest c) No unbalanced force acts on it b) It is moving with constant velocity d) It moves in a straight line 2. A body whose mass is concentrated in a very small region approximating a geometric point is called a) a rigid body c) an extended body b) a particle d) a projectile 3. For a particle to be in equilibrium, a) the vector sum of all forces should be zero c) the particle should be at rest d) the vector sum of forces should be equal to zero and sum torques be zero b) The vector sum of torques should be zero vector 4. The forces are said to be concurrent when the lines of action of the forces acting on a body a) are parallel c) are coplanar b) are perpendicular d) intersect at a common point 5. Two ropes are used to support a stationary weight W. Tensions in the rope must a) each be equal to W c) each be equal to W/2 b) have a vector sum equal in magnitude to W but opposite in direction d) have a vector sum greater than W
I- Multiple Choice. Encircle the letter that corresponds to the correct answer. 1. What is always true about a body in equilibrium? a) It is at rest c) No unbalanced force acts on it b) It is moving with constant velocity d) It moves in a straight line 2. A body whose mass is concentrated in a very small region approximating a geometric point is called a) a rigid body c) an extended body b) a particle d) a projectile 3. For a particle to be in equilibrium, a) the vector sum of all forces should be zero c) the particle should be at rest d) the vector sum of forces should be equal to zero and sum torques be zero b) The vector sum of torques should be zero vector 4. The forces are said to be concurrent when the lines of action of the forces acting on a body a) are parallel c) are coplanar b) are perpendicular d) intersect at a common point 5. Two ropes are used to support a stationary weight W. Tensions in the rope must a) each be equal to W c) each be equal to W/2 b) have a vector sum equal in magnitude to W but opposite in direction d) have a vector sum greater than W
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:I- Multiple Choice. Encircle the letter that corresponds to the correct answer.
1. What is always true about a body in equilibrium?
a) It is at rest
c) No unbalanced force acts on it
b) It is moving with constant velocity
d) It moves in a straight line
2. A body whose mass is concentrated in a very small region approximating a geometric
point is called
a) a rigid body
c) an extended body
b) a particle
d) a projectile
3. For a particle to be in equilibrium,
a) the vector sum of all forces should be zero c) the particle should be at rest
d) the vector sum of forces should
be equal to zero and vector
sum torques be zero
b) The vector sum of torques should be zero
4. The forces are said to be concurrent when the lines of action of the forces acting on a
body
a) are parallel
c) are coplanar
b) are perpendicular
d) intersect at a common point
5. Two ropes are used to support a stationary weight W. Tensions in the rope must
a) each be equal to W
c) each be equal to W/2
b) have a vector sum equal in
magnitude to W but opposite
in direction
d) have a vector sum greater than W
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