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..
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 force is inclined at angle 60Â° to the horizontal. If its rectangular component in the horizontal direction is 50 N, then magn..
consider the following two statements.
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 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 bomb of mass 9 kg explodes 2 pieces mass 3 kg and 6 kg
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 body of mass 16 kg. at rest explodes in to. two pieces of
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 ..
A force F = 5i + 2j - 5k acts on a particle whose position vector is r = l - 2j + k. what is the torque about the origin?
A body of mass 1000 kg is moving horizontally with a velocity 50 ms^-1. A mass of 250 kg is added. Find the final velocity.
If the scalar and vector products of two vectors A and B are equal in magnitude, then the angle between the two vectors is
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
a red LED emits light 0.1 watt
Velocity and acceleration vectors of charged particle moving perpendicular to the direction of a magnetic fieal at given instant o..
Three concurrent coplanar forces 1 N 2 N and 3 N acting along different directions on a body
Which of the following is not a vector quantity?
If a. b = la * bl, then tan will be
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
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..
Dute to a force of (6l + 2j) N the displacement of a body is (3l - j) m, then the work done 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
The magnitude of a vector on the additional of two vector 6 L + 4j
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
the angle between the z -axis and the vector (l + j + root 2 k) is
The angle between the z - axis the vector (l l + j + root 2 k)..
The coordinates of a particle moving in XY-plane at any instant of time t are x = 4t^2, y = 3t^2. The speed of the particle at tha..
two identical particle Move towards each other with velocity
a body of a mass m while falling vertical downward under gravity
A circle dise of radius r is removed from a bigger circular
If the angle between the vectors A and B is 0 then the value of the product (B * A) A is equal to
an energy of 24.6 eV is require
Give, A = l + j . the component
A gun fires bullets each of mass lg with velocity of 10 ms^-1 by exerting a constant force of 5 g weight. Then, the number of bull..
the figure shows the position Time
two identical particle move forward each other with velocity
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