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Mathematics

1 answer:

Lorico [155]2 years ago

7 0

Answer:

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edp445

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How long did it take to reach the bottom of the slope

mafiozo [28]

To solve this we are going to use the kinematic equation for final velocity: $V_{f}=V_{i}+at$
where
$V_{f}$ is the final velocity
$V_{i}$ is the initial velocity
$a$ is the acceleration
$t$ is the time

We know for our problem that the the velocity at the beginning of the slope is $2.0ms^{-1}$ , so $V_{i}=2.0$ . We also know that the speed ad the bottom of the slope is $20ms^{-1}$ , so $V_{f}=20$ . We also know that the acceleration is $6ms^{-2}$ , so $a=6$ . Lets replace those values in our formula and solve for $t$ :
$V_{f}=V_{i}+at$
$20=2+6t$
$6t=18$
$t= \frac{18}{3}$
$t=3$ seconds

We can conclude that it takes the roller coaster 3 seconds to reach the bottom of the slope.

3 0

3 years ago

What is the thousandth positive odd number ?

Igoryamba

So the formula for odd numbers is 2n

the nth term is 2n
the first odd number is 2(1)=2
second=2(2)

so the thousanth odd number is 2(1000)=2000

8 0

3 years ago

In circle P, the measure of ∠QPS is 15° and RQ is a diameter.

Nookie1986 [14]

Answer: M QT= 120

M RT= 60

M QRT= 180