Physics-
General
Easy

Question

If vectors 2 stack i with rightwards arrow on top plus 2 stack j with rightwards arrow on top minus 2 stack k with rightwards arrow on top comma 5 stack i with rightwards arrow on top plus y stack j with rightwards arrow on top plus stack k with rightwards arrow on top are coplanar, the value of y is:

  1. 81    
  2. 36    
  3. 23    
  4. 9    

The correct answer is: 23

Related Questions to study

General
physics-

I started walking down a road to day-break facing the sun After walking for some time, I turned to my left, then I turned to the right once again In which direction was I going then?

I started walking down a road to day-break facing the sun After walking for some time, I turned to my left, then I turned to the right once again In which direction was I going then?

physics-General
General
physics-

Out of the following the resultant of which cannot be 4 newton?

Out of the following the resultant of which cannot be 4 newton?

physics-General
General
physics-

If stack A with rightwards arrow on top equals stack B with rightwards arrow on top plus stack C with rightwards arrow on top and the magnitude of stack A with rightwards arrow on top comma stack B with rightwards arrow on top text  and  end text stack C with rightwards arrow on top are 5, 4 and 3 units respectively, the angle between stack A with rightwards arrow on top text  and  end text stack B with rightwards arrow on top text end text text is : end text

If stack A with rightwards arrow on top equals stack B with rightwards arrow on top plus stack C with rightwards arrow on top and the magnitude of stack A with rightwards arrow on top comma stack B with rightwards arrow on top text  and  end text stack C with rightwards arrow on top are 5, 4 and 3 units respectively, the angle between stack A with rightwards arrow on top text  and  end text stack B with rightwards arrow on top text end text text is : end text

physics-General
parallel
General
physics-

For the fig as shown:

For the fig as shown:

physics-General
General
physics-

Forces 3N, 4N and 12N act at a point along x, y and z axis respectively The magnitude of the i resultant force is :

Forces 3N, 4N and 12N act at a point along x, y and z axis respectively The magnitude of the i resultant force is :

physics-General
General
physics-

If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2times that of the earth, the gravitational acceleration on the surface of that planet is

If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2times that of the earth, the gravitational acceleration on the surface of that planet is

physics-General
parallel
General
physics-

A body weight 500 N on the surface of the earth. How much would it weigh half way below the surface of the earth

A body weight 500 N on the surface of the earth. How much would it weigh half way below the surface of the earth

physics-General
General
physics-

Let g be the acceleration due to gravity at earth’s surface and K be the rotational kinetic energy of the earth. Suppose the earth’s radius decreases by 2% keeping all other quantities same, then-

Let g be the acceleration due to gravity at earth’s surface and K be the rotational kinetic energy of the earth. Suppose the earth’s radius decreases by 2% keeping all other quantities same, then-

physics-General
General
physics-

Gravitational mass is proportional to gravitational

Gravitational mass is proportional to gravitational

physics-General
parallel
General
physics-

Periodic time of a satellite revolving above Earth’s surface at a height equal to R, radius of Earth, is [g is acceleration due to gravity at Earth’s surface]

Periodic time of a satellite revolving above Earth’s surface at a height equal to R, radius of Earth, is [g is acceleration due to gravity at Earth’s surface]

physics-General
General
physics-

A body of mass m rises to height h = R/5 from the earth’s surface, where R is earth’s radius. If g is acceleration due to gravity at earth’s surface, the increase in potential energy is-

A body of mass m rises to height h = R/5 from the earth’s surface, where R is earth’s radius. If g is acceleration due to gravity at earth’s surface, the increase in potential energy is-

physics-General
General
physics-

The value of ‘g’ at a particular point is 9.8 m/s2 Suppose K the earth suddenly shrinks uniformly to half its present size without losing any mass The value of ‘g’ at the same point from the centre of earth does not shrink) will now be :

The value of ‘g’ at a particular point is 9.8 m/s2 Suppose K the earth suddenly shrinks uniformly to half its present size without losing any mass The value of ‘g’ at the same point from the centre of earth does not shrink) will now be :

physics-General
parallel
General
physics-

Which of the following relation is wrong?

Which of the following relation is wrong?

physics-General
General
physics-

A 0.5kg ball is suspended to a string of length 1m and is rotated in a vertical plane by holding one end of the string. If it makes 30 rpm then the maximum tension in the string is .... open square brackets pi to the power of 2 end exponent equals 10 close square brackets.

A 0.5kg ball is suspended to a string of length 1m and is rotated in a vertical plane by holding one end of the string. If it makes 30 rpm then the maximum tension in the string is .... open square brackets pi to the power of 2 end exponent equals 10 close square brackets.

physics-General
General
physics-

A stone tied to a string is swung in a vertical circle The physical quantity that remains constant is ....

A stone tied to a string is swung in a vertical circle The physical quantity that remains constant is ....

physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.