This question would actually go under physics
Assuming that the model rocket goes straight up into the air and not at an angle, you can calculate for the maximum height by finding how long it takes for the velocity of the rocket to reach 0.
This can be calculated using the equation
t = (v sinx) /g
where t=time, v=velocity at zero seconds, x=angle of launch, g=gravity
Since we are assuming that the rocket flies straight up, the angle would be 90º, so sinx would be equal to 1.
That reduces are equation to
t = v / g
g=9.81 m/s^-2
So we need to convert gravity to feet/second^-2 and divide 160 by g, 160 being the initial velocity.
g=9.81 m/s^-2 = <span>32.2 ft/s^-2
160/32.2 ≈ 4.97 seconds
</span>
Answer: 90
Step-by-step explanation:
Answer:
<h2>77.3%</h2>
Step-by-step explanation:
Percentage decrease = new amount / old amount
<u />
2619 / 3388 = 0.7730224321
<u>Multiply by 100 to make it a percentage and then round it to the nearest tenth.</u>
<u />
0.7730224321 * 10 =
77.30224321
<u>Rounded</u>
77.3
Answer:
6 minutes and 35 seconds
Step-by-step explanation:
65 km/h will take you 01:32:18 to travel 100 kilometers
70 km/h will take you 01:25:43 to travel 100 kilometers
subract 01:25:43 from 01:32:18 and you have 6 minutes and 35 seconds
Switch the answers to the product question and the quotient question and everything else looks right (product means multiply, quotient means divide)