ECAT Engineering Exams Quizzes MCQs Quizzes ECAT Engineering Entry Test 2017 Physics Vectors and Equilibrium 3

Question:
The magnitude of work is zero when the angle between force and displacement is:

Option A):
0⁰
Option B):
None of these
Option C):
90⁰
Option D):
10⁰

Correct Answer is Option C):
90⁰