Question

A cannon ball of mass 500g is fired with a speed of 15m/s.find :
1.its kinetic energy
2. its momentum​

Answer 1

Answer:

$its \: kinetic \: energy$

Answer 2

Answer:

KE= 56.25

P=7.5

Explanation:

1]

KE= 1/2 mv²

KE= 0.5×15×15 ÷ 2

KE= 56.25 J

2]

P= mv

P= 0.5×15

P= 7.5 kg m s^-1