A projectile of mass m is fired with velocity v from a point P at theta = 45°. Neglecting air friction, the magnitude of change of momentum between the leaving pt. P and arriving pt. Q is :

A projectile of mass m is fired with velocity v from a point P at thet

1.	A projectile of mass m is fired with velocity v from a point P at theta = 45°. Neglecting air friction, the magnitude of change of momentum between the leaving pt. P and arriving pt. Q is :
Answer» `(MV)/sqrt(2)` 2MV `1/2mv` `sqrt(2)mv` SOLUTION :`P_(1y)=mvsintheta,p_(2y)=-mvsintheta.` As `theta=45^@` `:. \|Deltap_(y)\|=2mvsintheta=2mvxx1/sqrt(2)=sqrt(2)mv`

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A projectile of mass m is fired with velocity v from a point P at theta = 45°. Neglecting air friction, the magnitude of change of momentum between the leaving pt. P and arriving pt. Q is :

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