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NCERT Exemplar Solutions Class 9 Science Solutions for Work and Energy - Exercise in Chapter 11 - Work and Energy
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The work done on an object does not depend upon the
(a) displacement
(b) force applied
(c) the angle between force and displacement
(d) the initial velocity of the object
Answer:
The answer is (d) initial velocity of the object
Explanation:
Work done is the product of force and displacement hence force and displacement are the required attributes for the work to be done. But work done is not dependent on initial velocity.
Video transcript
"hello everyone welcome to leader
learning
i am gurpreet your science tutor
today's question is the work done on an
object
does not depend upon
a displacement b force applied
c the angle between the force and the
displacement
and d the initial velocity of the
object so from the four options we have
to
tell that on which factor the work done
of an object
does not depend
so let us start our answer
work done
is the product of
force and displacement
hence
force and displacement both they are
required
for the work to be done but
work
is not dependent
on the
initial velocity
so the correct option for this question
will be
option d that is the work done on an
object does not depend upon the initial
velocity of the
object for more such videos please
subscribe leader learning
and for any doubts drop a comment thank
you"
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