i think the answer is 9.
Answer:
Light and heat!
Explanation:
This is correct<3
I=1,2•10³ kg•m/s
v¹=3.5m/s
vf=5m/s
v=5-3.5=1.5m/s
I=p
I=mv=850•1.5=1275 kg•m/s=1,2•10³ kg•m/s
work is done when a force is applied. the force must not be zero and should make the object move through a certain distance.
