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4 years ago

Is there any point on the trajectory where v⃗ and a⃗ are parallel to each other? if so, where?

1 answer:

6 0

In a projectile motion, there are two components: horizontal and vertical. The vertical component is in a uniformly accelerated motion. The motion is always directed downwards due to the force of gravity. The horizontal component (constant velocity) on the other hand must move in the horizontal axis. They can never be parallel on the trajectory.

They can only by parallel during a free fall motion, wherein no change of horizontal direction occurs.

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HELP ME WITH THIS PLEASE!!!! WILL MARK BRAINLIEST!!!

Allushta [10]

Answer:

parallelogram

Step-by-step explanation:

cannot be a rhombus or square because all sides are not equal

cannot be a rectangle because the slopes indicate no right angles

5 0

3 years ago

At the end of the summer, Jamie bought a $325 surfboard for $123.50. By what percent was the surfboard marked down?

Lerok [7]

We shall see how much percentage of the original price was the price discounted and it will show the percentage decreased
325x/100=123.50
325x=12350
X=12350/325
X=38

hope u found this answer helpful

4 0

3 years ago

A standard deck of cards has 52 cards, 4 of each type (Ace, King, Queen, Jack, 10,...,2). From a well-shuffled deck, you are dea

Wewaii [24]

Answer:

a)%85,5

b)%92,2

Step-by-step explanation:

a) To determine the probability of getting a hand with at least one face, we need to calculate the probability of the hand without any face firstly.

$(36/52)*(35/51)*(34/50)*(33/49)*(32/48)=0,145$

Then, we need to deduct this value from the probability 1

$1-0,145=0,855$

The probability of the hand with at least one face is %85,5.

b)To determine the probability of a hand with at least one ace and face we will track the same road again.

$(32/52)*(31/51)*(30/50)*(29/49)*(28/48)=0,0775$

Then, we need to deduct this value from the probability 1

$1-0,0775=0,922$

The probability of the hand with at least one ace and one face is %92,2.

3 0

3 years ago

Pls help these are fractions btw.

vichka [17]

<h3><u>S</u><u>olution</u></h3>

1). 1/3 + 1/5 = (5 + 3)/15

= 8/15. Ans.

2).

==> 3/5 - 1/6

= (3×5 - 5)/30

= (15 - 5)/30

= 10/30

= 1/3 Ans.

3).

==> 2/3 ÷ 3/4

= 2/3 × 4/3

= 8/9 Ans.

4).

==> 3/8 + 5/12

= (3×3 + 10)/24

= (9+10)/24

= 19/24 Ans.

5).

==> 5/16 - 3/32

= (5×2 - 3)/32

= (10-3)/32

= 7/32 Ans.

6 0

3 years ago

Write the equation of the line in slope intercept form if its slope is 3 and y intercept is -5

Veseljchak [2.6K]

Answer:

y = 3x - 5

Step-by-step explanation:

1. The slope-intercept form a line is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.

2. Given the values of m and b, let's plug them in:

$y = (3)x+(-5)$
$y = 3x-5$

Therefore, the equation of the line in slope-intercept form is y = 3x - 5.

Have a lovely rest of your day/night.

7 0

3 years ago

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