Related Questions

The elastic potential energy of a body is
1. Work done by the external force against the deforming force.
2. Work done against the external force by the deforming force.
3. The sum of work done by the external force and the deforming force.
Which one option is true?
Work done by A in one day is half of the work done by B in one day. Work done by B is half of the work done by C in one day. If C alone can complete the work in 7 days, in how many days can A, B and C together complete the work ?
Assertion (A) Work done by friction on a body sliding down an inclined plane is positive.
Reason (R) Work done is greater than zero it the angle between force and displacement is acute.
Consider the following statements.
1. For a moving particle, distance can never be negative or zero while displacement can be.
2. The rate of displacement with time is called speed.
3. For a moving body the average velocity can never be negative or zero.
Which of the statements given above is/are correct?
If the work done is zero, then the angle between force and displacement is-
Dead weight tonnage of a ship
(i) varies with latitude and season
(ii) is more than displacement tonnage
(iii) is the difference between displacement load and displacement light
Of these statements
A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is
A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is:
কাজ এর পরিমাণ শূন্য হলে, বল ও সরণের মধ্যবর্তী কোণ কত? (If the work done is zero, what is the angle between force and displacement?)
What is the work done if the angle between applied force and the direction of the displacement is 90°?