Answer:

Explanation:
From the question we are told that:
Initial Speed 
Time 
Angle
Generally the Newton's equation for motion is mathematically given by



Answer:
A is a gas becasue it contracts and the containers change.
Answer:
When iron rusts - in the presence of moisture and oxygen - iron-oxide is formed. Iron oxide is nothing but a compound of iron and oxygen. There is an increase in the mass of the iron equal to the mass of oxygen that has gone into forming the rust.
<em>hope it helps:)</em>
Momentum
= mass x velocity
= 0.2 x 5
= 1 kg m/s