When a stone tied to a string is whirled...

When a stone tied to a string is whirled in a circle, the work done on it by the string is

A

positive

B

negative

C

zero

D

undefined

Text Solution

Verified by Experts

The correct Answer is:

C

Topper's Solved these Questions

SOUND
HC VERMA|Exercise QUESTION BANK |18 Videos

Similar Questions

Explore conceptually related problems

When a body is whirled in a circle, the work done on it is

If a bodyy is tied to a string and whirled in vertical circle, then the tension in the string at the highest position is

A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because

A stone tied at the end of string is whirled in a circle. If the string break, the stone flies away tangentially . Why ?

A stone tied to a string is whirled in a circle. As it is revolving, the rope suddenly breaks. Then

IF a stone is tied to one end of the string and whirled in verticle circle, then the tension in the string at the lowest point is equal to

A stone of a mass m tied to a string of length /is rotated in a circle with the other end of the string as the centre. The speed of the stone is V. If the string breaks, the stone will

A stone of mass m tied to a string of length l is rotated in a circle with the other end of the string as the centre. The speed of the stone is v. If the string breaks, the stone will move

HC VERMA-WORK, ENERGY AND POWER-QUESTION BANK

The work done by the weight of a 1-kg mass while it moves up through 1...
Text Solution
|
A force of 10 N acts on a body towards the east. The work done by the ...
Text Solution
|
When a stone tied to a string is whirled in a circle, the work done o...
Text Solution
|
A man with a box on his head is climbing up a ladder. The work done by...
Text Solution
|
A porter with a suitcase on his head is climbing up a flight of stairs...
Text Solution
|
As a body rolls down in inclined plane, it has
Text Solution
|
The kinetic energy of a body depends
Text Solution
|
In which of the following cases is the potential energy of a spring mi...
Text Solution
|
A particle of mass 100 g moves at a speed of 1 m/s. Its kinetic energy...
Text Solution
|
A ball is thrown upwards from a point A.It reechec up to the highest p...
Text Solution
|
A body of mass 2 kg is dropped from a height of 1 m. It s kinetic as i...
Text Solution
|
Two bodies of unequal masses are dropped from a cliff. At any instant,...
Text Solution
|
When the speed of a particle is doubled, its kinetic energy
Text Solution
|
When the speed of a particle is doubled, the ratio of its kinetic ener...
Text Solution
|
The unit of power is
Text Solution
|
A person A does 500 J of work in 10 minutes and another person B does ...
Text Solution
|
Mark the statement true(T) or false (F): Work and energy have differe...
Text Solution
|
Mark the statement true(T) or false (F): A stone tied to a string is ...
Text Solution
|
Mark the statement true(T) or false (F): When an aeroplane takes off,...
Text Solution
|
Mark the statement true(T) or false (F): The potential energy of a sp...
Text Solution
|