Question

basement deflect a ball by an angle 45 degree without changing its initial speed which is equal to 54 km per hour what is the impulse import to the ball mass of the ball is 0.15 kg​

Answer 1

1/ Magnets have north pole and south pole

/Magnetic field is always from north to south .

3/ You can use magnet as electromagnet and MRI and also for levitating with superconductors .Magnets are very useful in Motors, ac generator and dc generator and it is well known for bullet  . In this procress trains levitate due to electromagnets placed in the train’s down part and at the runner's part.

4/If you will go on google and type magnet then lots of page will be opened. Magnets play a key role in our life.

5/Magnets are very powerful due to material used in them.

BE YOURS.........^_^

Answer 2

Where, 
AO = Incident path of the ball 
OB = Path followed by the ball after deflection 
∠AOB = Angle between the incident and deflected paths of the ball = 45° 
∠AOP = ∠BOP = 22.5° = θ 
Initial and final velocities of the ball = v 
Horizontal component of the initial velocity = vcos θ along RO 
Vertical component of the initial velocity = vsin θ along PO 
Horizontal component of the final velocity = vcos θ along OS 
Vertical component of the final velocity = vsin θ along OP 
The horizontal components of velocities suffer no change. The vertical components of velocities are in the opposite directions. 
∴Impulse imparted to the ball = Change in the linear momentum of the ball 

Mass of the ball, m = 0.15 kg 
Velocity of the ball, v = 54 km/h = 15 m/s 
∴Impulse = 2 × 0.15 × 15 cos 22.5° = 4.16 kg m