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 a height of `18 m`. How much energy is lost due to air friction? `(g = 10 ms^(-2))`

10 J

20 J

30 J

40 J

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK, POWER & ENERGY
MOTION|Exercise Exercise - 3 Section-B|22 Videos
WORK, POWER & ENERGY
MOTION|Exercise Exercise - 2|30 Videos
WAVES
MOTION|Exercise EXERCISE -4 (Level -II) (previous year JEE Advanced)|10 Videos

Similar Questions

Explore conceptually related problems

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

An object moving with a velocity of 50 ms^(-1) comes to rest after 20 s. What is its initial velocity ?

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

MOTION-WORK, POWER & ENERGY -Exercise - 3 Section-A

A vertical spring with force constant k is fixed on a table. A ball of...
Text Solution
|
A spherical ball of mass 20kg is stationary at the top of a hill of he...
Text Solution
|
An explosion blows a rock into three parts. Two parts go off at right ...
Text Solution
|
A block of mass m attached in the lower and vertical spring The spring...
Text Solution
|
Two bodies of mass 1 kg and 3kg have position vectors hati+2hatj+hatka...
Text Solution
|
An engine pumps water continously through a hose. Water leave the hose...
Text Solution
|
A body of mass 1 kg is thrown upwards with a velocity 20 ms^(-1). It m...
Text Solution
|
A plate of mass m, length b, and breadth a is initially lying on a hor...
Text Solution
|
force F on a partical moving in a straight line veries with distance d...
Text Solution
|
A body mass M hits normally a rigid wall with velocity v and bounces b...
Text Solution
|
A person of mass 60kg is inside a lift of mass 940kg and presses the b...
Text Solution
|
The potential energy of a system increased if work is done
Text Solution
|
A car of mass m starta from rest and accelerates so that the instyanta...
Text Solution
|
A partical of mass m is driven by a machine that deleveres a constant ...
Text Solution
|
A block of mass 10 kg, moving in x-direction with a constant speed of ...
Text Solution
|
Two spherical bodies of mass M and 5M & radii R & 2R respectively are ...
Text Solution
|
Two similar springs P and Q have spring constants K(P) and K(Q)(K(P)gt...
Text Solution
|
A body of mass 1 kg begins to move under the action of a time depende...
Text Solution
|
Consider a drop of rain water having mass 1 g falling from a height of...
Text Solution
|
A body initially rest and sliding along a frictionless trick from a he...
Text Solution
|