A simple example of a dot product is the:
Correct answer: C. Work
- A. Force
- B. Energy
- C. Work
- D. Momentum
Explanation
Work (W) is the product of the force applied to an object and the distance over which the force is applied, in the direction of the force. Mathematically, work is calculated using the dot product of force and displacement: W=F⋅d The dot product accounts for the directional component of the force that contributes to the work done.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Vectors and Equilibrium
Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
Practise Vectors and Equilibrium
431 free Vectors and Equilibrium MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Vectors and Equilibrium questions
In a right angled triangle, cosθ=
A vector having an arbitrary direction and zero magnitude is called:
A physical quantity which requires magnitude in proper units as well as direction is called:
If the vectors A . B = 0, either the vectors are mutually perpendicular to each other or one or both vectors are:
The scalar product of a vector A with itself i.e. A . A is called:
The cross product of two vector A and B in the form of their components Ax, Ay, Az, and Bx, By, Bz, is defined as _