RRB Technician 2013 Ques 17
Question: Maximum work will be done if the angle between force applied and displacement produced is
Options:
A) zero
B) $ 45^{o} $
C) $ 90{}^\circ $
D) $ 180^{o} $
Show Answer
Answer:
Correct Answer: A
Solution:
- Work done = Force $ \times $ Displacement It is equal to scalar product of Force and displacement $ =F.,\cos \theta $ $ \cos \theta =1= $ Maximum when $ \theta =0 $ Maximum work is done when $ \theta = $ zero
BETA
