Solve

Guides

0

You visited us 0 times! Enjoying our articles? Unlock Full Access!

Question

State carefully if the following quantities are 'positive' or 'negative':
Work done by gravitational force in the above case.

Open in App

Solution

Verified by Toppr

'Negative'.
Reason: Force is acting in the opposite direction to displacement $$(\theta =180^{0})$$.

Was this answer helpful?

0

Similar Questions

Q1

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.

View Solution

Q2

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.

View Solution

Q3

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: (a) work done by a man in lifting a bucket out of a well by means of a rope tied to the bucket. (b) work done by gravitational force in the above case, (c) work done by friction on a body sliding down an inclined plane, (d) work done by an applied force on a body moving on a rough horizontal plane with uniform velocity, (e) work done by the resistive force of air on a vibrating pendulum in bringing it to rest.

View Solution

Q4

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.

View Solution

Q5

In the following case a force,

F

is acting on an object of mass,

m

. The direction of displacement is from west to east as shown by the longer arrow. Observe the diagram carefully and state whether the work done by the force is negative, positive or zero.

View Solution