363

You visited us 363 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard IX

Physics

Kinetic Energy

When an objec...

Question

When an object of mass m slides from point of height H (from Ground) in the semicircular groove and reaches another point which at same height (H), then work done by gravity in this case is:

mgH

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

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

Infinite

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

None of these

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

Open in App

Solution

The correct option is B 0
At same height potential energy is same.
Work done by gravity $= Δ P . E = 0$

Suggest Corrections

Similar questions

200 J of work was done against gravity to lift an object of mass 1 kg to a particular height. If the body is dropped from that height, what will be its velocity when it reaches the bottom?

Q. A particle of mass

m

is projected with an initial velocity

u

at an angle

θ

from the ground. What is the work done by gravity during the time it reaches the highest point P?

Q. A box when dropped from a certain height reaches the ground with a speed v. When it skides from rest from the same height down a rough inclined at in angle 45 to the horizontal,it reaches the ground with a speed v/3. The coefficient of sliding friction between the box and the plan is (acceleration due to gravity is

10 m s^{- 2}

)

Q. An object A is released from the top of a vertical building of height

H

. At an instant when it has descended

x m

from the top, another object B is released from

y m

below the top of that building. Right from this instant, both these objects take the same amount of time to reach the ground. Which of the following expressions in the given situation is correct ?

Q. Two objects of masses

m_{1}

and

m_{2}

having the same size are dropped simultaneously from heights

h_{1}

and

h_{2}

respectively. Find out the ratio of time they would take in reaching the ground.

Join BYJU'S Learning Program

When an object of mass m slides from point of height H (from Ground) in the semicircular groove and reaches another point which at same height (H), then work done by gravity in this case is:

The correct option is B 0At same height potential energy is same.Work done by gravity =ΔP.E=0

The correct option is B 0
At same height potential energy is same.
Work done by gravity $= Δ P . E = 0$