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Subject: Physics, asked on 12/3/18

Q.24. State and prove the law of conservation of linear momentum. Write its two applications. The linear momentum of a lady can change in the direction of applied force. Comment.

Subject: Physics, asked on 9/3/18

A ball of mass m, moving with a speed 2v0, collides inelastically an (e > 0) with an
identical ball at rest. Show that,
(i) for head-on collision, both the balls move forward
(ii) for a general collision, the angle between the two velocities of scattered balls is less
than 90°.

Subject: Physics, asked on 9/3/18

Do answer this experts,I'm having my final exam tmrw!


20. A ball of mass m, moving with a speed 2vo, collid\es inelastically (e>0) with an identical ball at rest. Show that,
 (i) for head-on collision, both the balls move forward 
(ii) for a general collision, the angle between the two velocities of scattered balls is less 
than 90o. 
 

Subject: Physics, asked on 7/3/18

A particle is acted upon by a force of constant magnitude
which is always perpendicular to the velocity of the
particle. The motion of the particle takes place in a
plane. It follows that
(a) its velocity is constant
(b) its acceleration is constant
(c) its kinetic energy is constant
d) it moves in a circular path.

Subject: Physics, asked on 7/3/18

Write 3 differences between Gangue and slag?

Subject: Physics, asked on 7/3/18

A body of mass 1 g moving with velocity (2i-3j) cm/s collides inelastically with another body of mass 2 g moving with velocity (4j-6k) cm/s. What is the velocity of the particle formed?

Subject: Physics, asked on 6/3/18

The kinetic energy of a body increases by 300%. How much linear momentum of the body will increase?

Subject: Physics, asked on 4/3/18

16) A block of mass 4 kg is placed on the block of mass 6 kg. The 6 kg block is pulled with a force of 10 N on a smooth horizontal surface as shown below of both block moves together than frictional force acting between the block is.
(1) Zero
(2) 4 N
(3) 6 N
(4) 2 N

Subject: Physics, asked on 23/2/18

Pls solve asap
Q.14. A ball of mass 'm' is projected vertically upward with speed u1 and strikes the ground with speed u2. Find the work done by (a) gravity (b) air friction.

Subject: Physics, asked on 18/2/18

A body is dropped from a height h. By using the concept that during the fall the body's total mechanical energy remains constant ,find its speed when the body is at height h/4

Subject: Physics, asked on 4/2/18

2 bodies A and B of equal masses undergo oblique elastic collision with B being initially at rest.After the collision A moves off at an angle 30o with its orignal direction.In what direction does b move?

Subject: Physics, asked on 3/2/18

A billiard ball A moving with an initial speed of 1 ms-1, undergoes a perfectly elastic collision with another identical ball B at rest. A is scattered through an angle of 30°. What is the angle of recoil of B ? What is the speed of ball A after the collision? experts plz answer fast

Subject: Physics, asked on 24/1/18

A body is being driven on a smooth horizontal road with a constant force. Initially, the body is at rest. Power developed by external agent applying force depends on time as :
(1) P proportional t
(2) P proportional t1/2 
(3) P proportional t3/2 
(4) P proportional t2 
 

Subject: Physics, asked on 17/1/18

Solve this:

Subject: Physics, asked on 13/1/18

when force (3,2,1)N acts on a body displacement of the body in direction of x axis is 5m calculate work done

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