Two equal forces (P each) act at a point inclined to each other at an angle of 120Â°. The magnitude of their resultant is
The (x, y, z) coordinates of two points A and B are given respectively, as (0, 3, -1) and (â€“2, 6, 4). The displacement vect..
A force is inclined at angle 60Â° to the horizontal. If its rectangular component in the horizontal direction is 50 N, then magn..
Two trains, each of length 200 m are running on parallel tracks. One overtakes the other in 20 s and one crosses the other in 10 s..
The sum of two vectors A and B is at right angle to their difference. Then
A is a vector with magnitude A. then the unit vector a in the direction of vector A is
The square of resultant of two equal forces is three times their product. Angle between the forces is
If the angle between two vectors A and B is 120Â°, then its resultant C will be
The resultant of two vectors P and Q is R. If the magnitude of Q is doubled, then the new resultant becomes perpendicular to P. Th..
A boat crosses a river of width 1 km by shortest path in 15 min. If the speed of boat in still water is 5 kmh-1, then what is the ..
A motorboat covers a given distance in 6 h moving downstream on a river. It covers the same distance in 10 h moving upstream. The ..
Two trains are moving with equal speed in opposite directions along two parallel railway tracks. If the wind is blowing with speed..
A gun fires N bullets per sec, each of mass m with velocity v. The force exerted by the bullets on the gun is
A passenger train is moving at 5 ms^-1 . An express train is travelling at 30 ms^-1, on the same track and rear side of the passen..
a bomb of mass 9 kg explodes 2 pieces mass 3 kg and 6 kg
consider the following two statements.
A train of 150 m length is going towards North direction at a speed of 10 ms^-1. A parrot flies at a speed of 5 ms6-1 towards Sout..
a body of mass 16 kg. at rest explodes in to. two pieces of
A train is moving slowly on a straight track with a constant speed of 2 ms^-1. A passenger in the train starts walking at a steady..
a block of mass 0.50 kg is moving with speed 2.00 m/s on a smooth
a red LED emits light 0.1 watt
The rate of mass of the gas emitted from rear of a rocket is initially 0.1 kgs^-1. If the speed of the gas relative to the rocket ..
How many minimum number of coplanar vectors having different magnitudes can be added to give zero resultant?
Two equal vectors have a resultant equal to either of them, then the angle between them will be
Three concurrent coplanar forces 1 N 2 N and 3 N acting along different directions on a body
If the scalar and vector products of two vectors A and B are equal in magnitude, then the angle between the two vectors is
Which of the following is not a vector quantity?
an energy of 24.6 eV is require
The magnitude of a vector on the additional of two vector 6 L + 4j
Velocity and acceleration vectors of charged particle moving perpendicular to the direction of a magnetic fieal at given instant o..
consider a two - particle system with particle having masses
A particle is displaced from a position (2j - j + k) to another position (3l + 2j - 2k) under the action of the force of
if the mass of the particle.....passage 3
If a. b = la * bl, then tan will be
If A = B + C and have A B and C scalar magnitudes of 5 4 and 3 units respectively then the angle between A and C is
If A = B + C and the values of A B and C are 13 12 and 5 respectively then the angle between A and C will be
Dute to a force of (6l + 2j) N the displacement of a body is (3l - j) m, then the work done is
consider three vector A = l + j - 2k, B = l + j + k, C = 2l - 3j + 4k. A vector X of from aA + BB (a and B are numbers ) is perpen..
If the angle between the vectors A and B is 0 then the value of the product (B * A) A is equal to
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