A gardener pushes a lawn roller throug...

A gardener pushes a lawn roller through a distance 20m. If he applies a force of 20 kg -wt in a direction inclined at `60^@` to the ground , the work done by him is

1960 J

196 J

1.96 J

196 KJ

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK AND ENERGY
CHHAYA PUBLICATION|Exercise EXERCISE (Very short Answer Type Questions)|30 Videos
WORK AND ENERGY
CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-I)|10 Videos
WORK AND ENERGY
CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|38 Videos
WBCHSE QUESTION PAPER -2019
CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

A man pushes a roller with a force of 60N through a distance of 30 m. Calculate the work done if the handle of the roller is inclined at an angle of 60^@ with the ground .

Applying a force of 20 N, a body is moved through 10 m in the direction of the force. Find the amount of work done

A string is tied to a body and keeping it an angle 60^0 with the ground surface the body is pulled with it along the ground for a distance of 20 cm with the application of force of 100 dynes the amount of work done is

An object of mass 10 kg is kept on a horizontal table. On application of a force of 20 N , the object shifts horizontally by 8m. If the applied force makes an angle of 60^@ with the horizontal , find the work done .

A block , weighing 25.51 kg, was pulled with uniform velocity along a horizontal plane through a distance of 10 m . What is the work done by the force if the coefficient of sliding friction between the block and the plane is 0.2 and the applied force makes an angle of 60^@ with the vertical ?

A cycle with the rider has a total mass of 80 kg, it rolls down 60 m on a plane of inclination 30^@ . What is the total work done by gravity on the cycle ?

A box of mass 12 kg pushed up by a distance of 10 m on application of a 100N force along a plane of inclination 30^@ . If the coefficient of friction is 1/sqrt(3) , find the work done against friction. [g= 10 m*s^(s-2)]

CHHAYA PUBLICATION-WORK AND ENERGY-EXERCISE (Multiple Choice Questions)

A particle of mass m accelerating uniformly has velocity v at time t1 ...
Text Solution
|
A mass of 2kg falls from a height of 40 cm on a spring with a force c...
Text Solution
|
A gardener pushes a lawn roller through a distance 20m. If he applie...
Text Solution
|
Power required to raise a mass of 120 kg vertically upwards at a veloc...
Text Solution
|
A machine, applying a constant power is driving an object along a stra...
Text Solution
|
A windmill generates electrical energy. Suppose, the windmill converts...
Text Solution
|
A particle moves with a velocity 5hati -3hatj+6hatkm//s under the infl...
Text Solution
|
A quater horse power motor runs at a speed of 600 rpm. Assuming 40% ef...
Text Solution
|
Energy of a body thrown upward is
Text Solution
|
A particle is moving in a straight line such that its retardation is ...
Text Solution
|
Starting from rest a car moves on a plane. The coefficient of friction...
Text Solution
|
A particle falls from rest under the action of gravity . Variation of ...
Text Solution
|
A long spring is stretched by 2 cm. its potential energy is U . If th...
Text Solution
|
In which of the following cases the potential energy is defined
Text Solution
|
A body of mass m thrown vertically upwards attains a maximum height h....
Text Solution
|
For a moving particle (mass m, velocity v) having a momentum p, which...
Text Solution
|
The potential energy of a system increases if work is done
Text Solution
|
Two bodies of masses 4 kg and 5kg are moving with equal momentum. The...
Text Solution
|
A particle of mass m at rest in acted upon by a force P for a time t. ...
Text Solution
|
If the linear momentum of a body is increased by 50% , then the kineti...
Text Solution
|