The work done by a force overlineF = 2 o...

The work done by a force `overlineF = 2 overline i- overline j-overline k` in moving an object from origin to a point whose position vector is `overline r = 3 overline i + 2 overline j - 5 overline k`.

1 unit

9 units

13 units

60 units

Text Solution

Verified by Experts

The correct Answer is:

`W= vec F. vecS = vec F.(vecr_(2) - vec r_(1))`.

Topper's Solved these Questions

WORK POWER AND ENERGY
NARAYNA|Exercise Level- III (C.W)|50 Videos
WORK POWER AND ENERGY
NARAYNA|Exercise NCERT (Based Questions)|45 Videos
WORK POWER AND ENERGY
NARAYNA|Exercise Level- I (C.W)|60 Videos
WORK , ENERGY & POWER
NARAYNA|Exercise EXERCISE IV|43 Videos

Similar Questions

Explore conceptually related problems

Let overline a be vectors parallel to line of intersection of planes p_1 and p_2 through origin. If p_1 is parallel to the vectors 2overline j + 3 overline k and 4overline j - 3 overline k and p_2 is parallel to overline j - overline k and 3overline i - 3overline j, then the angle between overline a and 2overline i + overline j - 2overlinek is (A) pi/2 (B) pi/4 (C) pi/3 (D) pi/6

overline(AB)-overline(CB)+overline(DA)+2overline(CD)=

If overline(a), overline(b), overline(c) are position vectors of points A, B, C respectively such that 5overline(a)-3overline(b)-2overline(c)=0 , then

If overline(a), overline(b), overline(c) are non-coplanar vectors and the points with position vectors 2overline(a)+2overline(b), overline(a)+lambdaoverline(b)+overline(c) and 4overline(a)+4overline(b)-5overline(c) are coplanar, then lambda=

If overline(a), overline(b) and overline(c) are unit coplanar vectors, then [[2overline(a)-overline(b), 2overline(b)-overline(c), 2overline(c)-overline(a)]]=

If overline(a), overline(b), overline(c) are position vectors of points A, B, C respectively such that 3overline(a)+5overline(b)=8overline(c) then A divides BC

In triangle ABC, if 2overline(AC)=3overline(CB) , then 2overline(OA)+3overline(OB)=

If overline(a), overline(b) and overline(c) are unit vectors perpendicular to each other, the [[overline(a), overline(b), overline(c)]]^(2)=

NARAYNA-WORK POWER AND ENERGY-Level- II (C.W)

In two separate collisions, the coefficient of restitutions e(1) and e...
Text Solution
|
A sphere of mass m moving with constant velocity u, collides with anot...
Text Solution
|
A canon shell fired breaks into two equal parts at its highest point. ...
Text Solution
|
A body of 200 g begins to fall from a height where its potential energ...
Text Solution
|
The work done by a force overlineF = 2 overline i- overline j-overline...
Text Solution
|
A ball at rest is dropped from a height of 12 m. If it looses 25 % of ...
Text Solution
|
A mass of 2.9 kg is suspended from a string of length 50 cm and is at ...
Text Solution
|
A body is thrown vertically upward from a point A 125 m above the grou...
Text Solution
|
A body is mass 300 kg is moved through 10 m along a smooth inclined pl...
Text Solution
|
A ball of mass 'm' moving with a horizontal velocity 'v' strikes the b...
Text Solution
|
The velocity 'v' reached by a car of mass 'm' on moving a certain dist...
Text Solution
|
A ball 'A' of mass 'm' moving along positive x-direction with kinetic ...
Text Solution
|
Displacement of a body is 5 i+ 3 j - 4k m due to the action of a force...
Text Solution
|
A ball at rest is dropped freely from a height of 20 m. It loses 30 % ...
Text Solution
|
A 3 kg sphere makes an inelastic collision with another sphere at rest...
Text Solution
|
A ball is let to fall frm a height h(0). It makes 'n' collisions with ...
Text Solution
|
A bullet is fired normally towards an immovable wooden block. If it lo...
Text Solution
|
A ball is falling freely from a certain height. When it reached 10 m h...
Text Solution
|
A motor of power P(0) is used to deliver water at a certain rate throu...
Text Solution
|
A body of mass 5 kg makes an elastic collision with another body at re...
Text Solution
|