Guest

Q..No work is done by a force on an object if- (a) the force is always perpendicular to the velocity (b) the force is always perpendicular to its acceleration. (c) the object is stationary but the point of application of the force moves on the object (d) the object moves in such a way that the point of application of the force remains fixed. one or more than one correct answer question.....

Q..No work is done by a force on an object if-


(a) the force is always perpendicular to the velocity


(b) the force is always perpendicular to its acceleration.


(c) the object is stationary but the point of application of the force moves on the object


(d) the object moves in such a way that the point of application of the force remains fixed.


 


 


one or more than one correct answer question.....

Grade:

1 Answers

Badiuddin askIITians.ismu Expert
148 Points
12 years ago

Dear suhel malik

Option a,c,d are correct.

option a  is correct W=F.x cosΘ    here Θ is 90 so wor done is zero

option c is correct  because  x is zero

option d is correct because x is zero

Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you
the answer and detailed  solution very  quickly.

 We are all IITians and here to help you in your IIT JEE preparation.

All the best.
 
Regards,
Askiitians Experts
Badiuddin




Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free