Advertisements
Advertisements
प्रश्न
The work done on an object does not depend on the :
पर्याय
displacement
angle between force and displacement
force applied
initial velocity of the object
उत्तर
The work done on an object does not depend upon the initial velocity of the moving object.
Therefore, the answer is, (d) Initial velocity of the object.
APPEARS IN
संबंधित प्रश्न
A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force (see the given figure). Let us take it that the force acts on the object through the displacement. What is the work done in this case?
Can there be displacement of an object in the absence of any force acting on it? Think. Discuss this question with your friends and teacher.
The moon is revolving around the earth in a circular path. How much work is done by the moon?
Define the term energy.
Define 1 joule of energy.
When is work said to be done by a force?
It takes 20 s for a person A of mass 50 kg to climb up the stairs, while another person B does the same in 15 s. Compare the Work done.
Name the forms of energy which a wound-up watch spring possesses.
State two advantage of producing hydroelectricity.
What do you mean by degradation of energy?
P, Q and R are three forces which act as shown in fig.
The point O lies in the same plane. Given, P = Q = R = 10N
(i) Which force has the least moment about O? Give a reason.
(ii)Which force has the greatest moment about O? Give a reason.
Can every force produce work?
How is horse power related to the S. I. unit of power?
How long should an electric motor, of power 2 H.P. operate, so as to pump 5 m3 of water from a depth of 15m. [Take g = 10 N kg−1]
A bucketful of water is to be drawn from a well ______ will be done when a ______ is applied to do this because there will be a ______ of water.
(displacement, work, force)
One labourer carried four pans of road metal through a distance of 100 metres. If he carries two pans of road metal through a 200 metre distance ______ work will be done.
________ is said to be done when a force is acting on it.
State whether work is done or not, by writing yes or no, in the following case:
A boy climbs up 20 stairs.
