A ball of mass 5.0 gm and relative densi...

A ball of mass 5.0 gm and relative density 0.5 strikes the surface of the water with a velocity of 20 m/sec. It comes to rest at a depth of 2m. Find the work done by the resisting force in water: (take `g = 10 m//s^(2)`)

`-6J`

`+ 7.5 J`

`- 9 J`

`- 10 J`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK AND ENERGY
ANURAG MISHRA|Exercise Level 2|18 Videos
WORK AND ENERGY
ANURAG MISHRA|Exercise Level 3|34 Videos
WORK AND ENERGY
ANURAG MISHRA|Exercise Eample|47 Videos
UNIT AND DIMENSIONS
ANURAG MISHRA|Exercise Matching Type Problem|4 Videos

Similar Questions

Explore conceptually related problems

Ramesh raises on object of 12 kg through a height of 2.0 m. The work done try him is (take g = 10 m//s ^(2)):

A ball of mass 100 gm is projected upwards with velocity (10 m//s) . It returns back with (6 m//s) . Find work done by air resistance .

A cricket ball is rolled on ice with a velocity of 5.6 m//s and comes to rest after travelling 8 m . Find the coefficient of friction Given g = 9.8 m//s^(2) .

A ball of mass 0.2 kg moves with a velocity of 20m//sec and it stops in 0.1 sec , then the force on the ball is

A ball of mass 250 g moving with 20 m/s strikes a vertical wall and rebounds along the same line with a velocity of 15 m/s. If the time of contact is 0.1 s, the force exerted by the wall on the ball is

A bullet of mass 10g leaves a rifle at an intial velocity of 1000m/s and strikes the earth at the same level with a velocity of 500m/s. The work done in joule to overcome the resistance of air will be

A 60 gm tennis ball thrown vertically up at 24 m/s rises to a maximum height of 26 m. What was the work done by resistive forces?

A bullet of mass 10 g leaves a rifle at an initial velocit of 1000 m/s and strikes a target at the same level with a velocity of 100 m/s. The work done in joule to overcome the resistance of air will be

ANURAG MISHRA-WORK AND ENERGY-Level 1

A self-propelled vehicle of mass m, whose engine delivers a constant p...
Text Solution
|
A stone tied to a string of length L is whirled in a vertical circle w...
Text Solution
|
A ball of mass 5.0 gm and relative density 0.5 strikes the surface of ...
Text Solution
|
Aparticle of mass 1 g executes an oscillatory motion on the concave su...
Text Solution
|
A spring is compressed between two toy carts to masses m1 and m2. When...
Text Solution
|
A light spring is hung vertically from a fixed support and a heavy mas...
Text Solution
|
A running man has half the KE that a body of half his mass has. The ma...
Text Solution
|
An elastic spring of unstretched length L and force constant K is stre...
Text Solution
|
A ball P is projected vertically up. Another similar ball Q is project...
Text Solution
|
A particle of mass m is moving in a horizontal circle of radius r, und...
Text Solution
|
A 10 kg block is pulled along a frictionless surface in the form of an...
Text Solution
|
1 kg block collides with a horizontal massless spring of force constan...
Text Solution
|
A stone with weight W is thrown vertically upward into the air with in...
Text Solution
|
A stone of mass m, tied to the end of a string, is. whirled around in...
Text Solution
|
A block of mass m released from rest from point O as shown below. The ...
Text Solution
|
The mass m slides down the track and completes the vertical circle on ...
Text Solution
|
A body of mass m is moving in a circle of radius 'r' with a constant ...
Text Solution
|
In the shown figure, a small mass m starts sliding down a smooth and s...
Text Solution
|
In the Q. No. 26, if M = 2 m and friction exists between the circular ...
Text Solution
|
A particle of mass m is whirled in a vertical circle with the help of ...
Text Solution
|