A women throws an object of mass 500 g with a speed of 25 ms- 1 .(a) W hat is the im pulse im parted to the object ? (b) If the object hits a wall and rebounds with half the original speed, what is the change in momentum of the object ?

A women throws an object of mass 500 g with a speed of 25 ms- 1 .(a) W

1.	A women throws an object of mass 500 g with a speed of 25 ms- 1 .(a) W hat is the im pulse im parted to the object ? (b) If the object hits a wall and rebounds with half the original speed, what is the change in momentum of the object ?
Answer» Solution :Mas of the object(m ) = 500 G = 0.5 kg Speedof the object( v) = 25 `m//s` ( a)impulseimparted to theobject= CHANGEIN momentum `=mv - mu` `=0.5 (25 -0) = 12.5 N s` ( b)Halfof initialvelocityis `=-(25)/( 2 )m//s` CHANGE inmomentum= m(v - v) `=0.5 (-12.5- 25 )` `=-18.75 NS`