A body of mass 1 kg is thrown upwards wi...

A body of mass 1 kg is thrown upwards with a velocity 20 `ms^(-1)`. It momentarily comes to rest after attaining ah height of 18m. How much energy is lost due to air friction? (Take g=`ms^(-2)`)

30 J

40 J

10 J

20 J

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK, ENERGY AND POWER
AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - D)|13 Videos
WORK, ENERGY AND POWER
AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - B)|35 Videos
WAVES
AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 Videos

Similar Questions

Explore conceptually related problems

A body of mass 1 kg is thrown upwards with a velocity 20 ms^(-1) . It momentarily comes to rest after attaining a height of 18 m . How much energy is lost due to air friction? (g = 10 ms^(-2))

A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1) . What is the work done ?

A body of mass 500 g is thrown upwards with a velocity 20 ms^-1 and reaches back to the surface of a planet after 20 sec . Then the weight of the body on that planet is (Assume g to be constant) xN. Find x.

A stone of 1kg is thrown with a velocity of 20 ms^(-1) across the frozen surface of lake and comes to rest after travelling a distance of 50m . What is the force of friction between the stone and the ice?

A stone of mass 1 kg is thrown with a velocity of 20ms^(-1) across the frozen surface of a lake and it comes to rest after travelling a distance of 50m. What is the magnitude of the force opposing the motion of the stone?

A particle of mass 2 kg is projected vertically upward with a velocity of 20 m/s. It attains maximum height of 17 m. The loss in mechanical energy due to air drag is ( g = 10 ms^-2)

A stone of mass 1 kg is thrown with a velocity of 20 m/s across the frozen surface of a take and it comes to rest after travelling a distance of 50 m . What is the magnitude of the force opposing the motion of the stone ?

A particle of mass 1 kg is projected upwards with velocity 60ms^(-1) . Another particle of mass 2kg is just dropped from a certain height. After 2s, match the following. [Take, g =10 ms^(-2)] {:("column1","column2"),("Accelertion of CM","P Zero"),("B Velocity of CM","Q 10 SI unit"),("C Displacement of CM","R 20 SI unit"),("-","S None"):}

If a stone is thrown up with a velocity of 9.8 ms^(-1) , then how much time will it take to come back ?

A body is thrown up with a velocity 40 ms ^(-1). At same time another body is dropped from a height 40 m. Their relative acceleration after 1.3 seconds is

AAKASH INSTITUTE ENGLISH-WORK, ENERGY AND POWER-Assignment (SECTION - C)

A particle of mass M starting from rest undergoes uniform acceleration...
Text Solution
|
An engine pumps water continuously through a hose. Water leaves the ho...
Text Solution
|
A body of mass 1 kg is thrown upwards with a velocity 20 ms^(-1). It m...
Text Solution
|
A block of mass m attached in the lower and vertical spring The spring...
Text Solution
|
Water falls from a height of 60 m at the rate of 15 kg//s to operate a...
Text Solution
|
A sheel of mass 200g is ejected from a gun of mass 4 kg by an explosio...
Text Solution
|
A vertical spring with force constant K is fixed on a table. A ball of...
Text Solution
|
The potential energy of a long spring when stretched by 2 cm is U. If ...
Text Solution
|
A body of mass 3kg is under a constant force, which causes a displacem...
Text Solution
|
300J of work is done in slinding a 2 kg block up an inclined plane of ...
Text Solution
|
A bomb of mass 30kg at rest explodes into two pieces of masses 18 kg a...
Text Solution
|
A Force F acting on an object varies with distance x as shown in the f...
Text Solution
|
The angle between the two vectors A=3 hati+4hatj+5hatk and B=3hati+4ha...
Text Solution
|
Three vectors vecA, vecB and vecC satisfy the relation vecA. vecB=0 an...
Text Solution
|
If a unit vector is represented by 0.4 hati+0.7 hatj + chatk then the ...
Text Solution
|
If a vector 2hati +3hatj +8hatk is perpendicular to the vector 4hati -...
Text Solution
|
The work done by an applied variable force F=x+x^(3) from x = 0 m to x...
Text Solution
|
When a body moves with a constant speed along a circle
Text Solution
|
A position dependent force F=7-2x+3x^(2) acts on a small body of mass ...
Text Solution
|
A body constrained to move in y direction is subjected to a force give...
Text Solution
|