Ram carried four balls of metal through a height of 10 metres. The process involved some work done. If he carries two similar balls of metal through a height of 20 metres, work done in this case is ______ the first case. (Assume the balls are of weight $1 N$ each.)

more than

No worries! We‘ve got your back. Try BYJU‘S free classes today!

less than

No worries! We‘ve got your back. Try BYJU‘S free classes today!

equal to

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

double

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C equal to
Work done is the product of force and displacement.
(work done =force x displacement).
The force required to lift one ball = weight of each ball = 1 Newton.
To lift 4 balls 4 Newton is required.
hence the work done to lift 4 ball in first case will be -
work done $= 4 \times 10 = 40 J .$
Similarly for the second case,
work done (second case) $= 2 \times 20 = 40 J .$
Hence the work done will be equal for both cases.

Suggest Corrections

Similar questions

A force of 12 N is acting on a body and the same force 12 N is acting on the same body but in a different direction. If the body moves with a displacement of $^{'} d^{'}$ metres, then what is the work done?

Q. Two balls weighing 3 kg and 5 kg are raised to the same height from the ground. Work done on both the balls will be same.

Q. Fill in each blank with the appropriate term from the brackets.
(a) 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)
(b) If a ball is dropped on the sloping roof of a house, it acquires ...... and falls on the ground. That is, transformation of ........ energy into .......... energy takes place.
(kinetic, potential, motion)
(c) You might have seen some beautiful fireworks during Diwali. It is an example of transformation of ....... energy into....... energy.
(light, atom, chemical, solar)
(d) The solar cooker is an application of the ...... energy of the sun, while solar cells, solar lamps are applications of the ...... energy of the sun.
(light, chemical, heat)
(e) 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.
(equal, more, less)
(f) The capacity that an object has for doing work is called ....... .
(energy, displacement, force)

Two springs have their force constant as $k_{1}$ and $k_{2} (k_{1} > k_{2})$ . When they are stretched by the same force

Q. The work done in carrying the body from

A

B

20 J

and from

B

C

15 J

. The work done in moving the body from

A

C

assuming the force involved in all the cases is conservative force is:

Join BYJU'S Learning Program

Ram carried four balls of metal through a height of 10 metres. The process involved some work done. If he carries two similar balls of metal through a height of 20 metres, work done in this case is ______ the first case. (Assume the balls are of weight 1 N each.)

Ram carried four balls of metal through a height of 10 metres. The process involved some work done. If he carries two similar balls of metal through a height of 20 metres, work done in this case is ______ the first case. (Assume the balls are of weight $1 N$ each.)