A body moves in a vertical semicircle of radius r from the lowest point to highest point. What is the amount of work done? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be $g m s^{- 2}$ )

2mgr

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

mgr

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

mgr

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

2mgr

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

Open in App

Solution

The correct option is A
2mgr

As the body moves in a vertical semicircle from its lowest to the highest point, net displacement is equal to 2r. The only force acting is gravity in vertical direction i.e., the direction of displacement. So total work done = force due to gravity $\times$ net displacement = mg $\times$ 2r = 2mgr.

Suggest Corrections

Similar questions

Q. A body moves in a vertical semicircle of radius r from the lowest point to highest point. What is the amount of work done? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be

g m s^{- 2}

)

Q. A body moves in a vertical circle of radius r from the lowest point to highest point. What is the amount of work done by gravity? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be

g m s^{- 2}

)

A body moves in a vertical circle of radius r from the lowest point to highest point. What is the amount of work done by gravitational force during the motion? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be 'g' $\frac{m}{s^{2}}$ )

Q. A body of mass 2 kg is moving in a vertical of radius 2 m. The work done when it moves from the lowest point to the highest point is-

Q. An object of mass

^{'} m^{'}

is moving in a vertical circle of radius

^{'} R^{'}

what is the work done on the body. it moves when from lowest point of circle to highest point of circle

Join BYJU'S Learning Program

A body moves in a vertical semicircle of radius r from the lowest point to highest point. What is the amount of work done? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be g ms−2)

A body moves in a vertical semicircle of radius r from the lowest point to highest point. What is the amount of work done? (Assume mass of the body to be 'm' kg and acceleration due to gravity to be $g m s^{- 2}$ )