Answer:
Explanation:
Acceleration is equal to the change in velocity over the change in time, or
where the change in velocity is final velocity minus initial velocity. Filling in:
Note that I made the backward velocity negative so the forward velocity in our answer will be positive.
Simplifying that gives us:
and then isolating the final velocity, our unknown:
3.0(6.0) = v + 3.0 and
3.0(6.0) - 3.0 = v and
18 - 3.0 = v so
15 m/s = v and because this answer is positive, that means that the car is no longer rolling backwards (which was negative) but is now moving forward.
Locations X and Y are at the poles. Hope this helps!
Answer:
a= -1.2 m/s^2
Vi= 6.5 m/s
Vf= 0 m/s
t= 0-6.5/-1.2= <u>5.45 Sec</u>
Explanation:
Answer:
The velocity at the nozzle at inlet 
= 3584 
Explanation:
Pressure at inlet 
= 1 × 
Pa
Temperature at inlet 
= 518 ° c = 791 K
Mass flow rate = 
= 88.7
Gas constant for carbon die oxide is R = 189 
Mass flow rate inside the nozzle is given by the formula = 
× 
×
⇒ = = 1 × Pa
⇒ R = 791 × 189 = 149499 
⇒ = 0.0037 
Put all the above values in above formula we get,
⇒ 88.7 = 
× 0.0037 ×
⇒ = 3584
This is the velocity at the nozzle at inlet.
Solar roller is a cool name
