Question

a hockey ball of mass 200g at 10m/s is struck by a hockey stick so as to return it along its original path with velocity 5m/s Calculate the change in momentum of ball.​

Answer 1

Answer:

6.10×23ka power _11200g×10÷5

=5612 la power _11

Answer 2

$\huge\bigstar\sf\underline\red{GIVEN:-}$

$\large\sf{m=200g=0.2kg}$

$\large\sf{v1=10m/s}$

$\large\sf{mv1=Initial\:momentum}$

$\large\sf{v2=5m/s}$

$\large\sf{mv2=Final\:momentum}$

━━━━━━━━━━━━━━━

$\large\sf\purple{Change\:in\:momentum}$

$\longrightarrow$$\large\sf{mv1-mv2}$

$\longrightarrow$$\large\sf{0.2(10-(5))}$

$\longrightarrow$$\large\sf{0.2(15)}$

$\longrightarrow$$\large\sf{3kg\:m/s}$