কাজ
The moon revolves around the earth because the earth exerts a radial force on the moon. Does the earth perform work on the moon?
We know, work done is defined as the scalar product of the force and displacement
So, (where, is the angle between the force and displacement vector)
Now, here the radial force exerted on the moon by the earth i.e the attractive force due to gravity acts in a direction,perpendicular to which,the moon suffers the displacement during rotation.
So, hence
So,
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উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
The force constant of a wire is k and that of another wire is When both the wires are stretched through same distance, then the work done.
The force on a particle as the function of displacement x(in x-direction) is given by
The work done corresponding to displacement of particle from to unit is?
A body of mass travels in a straight line with a velocity where is a constant. The work done in displacing the body from to is proportional to:
A body is acted upon by a force which is proportional to the distance covered. If distance covered by denoted by x, then work done by the force will be proportional to:
