A 12 kg object speeds up from an initial velocity of 10 m:s-1 north to a final velocity of 15 m. s-north. Calculate the
change in momentum.
Select one:
a. -60 kg. m/s
b. 60 kg. m/s
C. -80 kg. m/s
d. 300 kg. m/s

Momentum = m • v

Original momentum = m • 10 m/s north

Final momentum = m • 15 m/s north

Change = m • (15 - 10) m/s north

Change = m • +5 m/s north

Change = +60 kg-m/s north

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

the answer is a)

mark brainliest