Home
Class 11
PHYSICS
The sign of work done by a force on a bo...

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative :
Work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket.

Text Solution

Verified by Experts

Positive
Promotional Banner

Similar Questions

Explore conceptually related problems

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative : Work done by gravitational force in lifting a bucket out of a well by means of a rope tied to the bucket

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative : Work done by friction on a body sliding down an inclined plane.

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative : Work done by an applied force on a body moving on a rough horizontal plane with uniform velocity.

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative : Work done by the resistive force of air on a vibrating pendulum in bringing it to rest.

If k is the force constant of the spring and mu is the coefficient of friction between the body of mass m and the floor, then write the total negative work done on the body tied to a spring at one end and the other end of the spring to a rigid support.

Classify the following as scalar and vector quantities. (i) time period (ii) distance (iii) force (iv) velocity (v) work done

Look at the activities listed below. Reason out whether or not work is done in the light of your understanding of the term 'work'. A wind-mill is lifting water from a well.