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pishuonlain [190]
2 years ago
6

Please help me with this I’ll mark your Brainly PLSSSS

Physics
2 answers:
Nadusha1986 [10]2 years ago
7 0

Answer:

A

Explanation:

Car A started at 15 Mph but took 20 seconds to get to 35 Mph. Car B only took 15 seconds to get to 35 Mph even though it started slower.

Firlakuza [10]2 years ago
6 0

Answer:

A

Explanation:

Car A had the best initial acceleration by more than 5 mph, while Car B reached the desired speed in 15 seconds, compared to 20 seconds.

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The blocks shown in the pictures below are all made of wood. Which car will move the fastest?
Ne4ueva [31]

Answer:

The one with the less mass

Explanation:

7 0
3 years ago
What explains the information needed to calculate speed and velocity?
Ede4ka [16]
To calculate speed, you need to know the total distance covered
and the time it took to cover the distance.

To calculate velocity, you need the starting location, the ending location,
and the time it took to go from start to finish.

3 0
3 years ago
A 2.00 kg cat is in a 97.00 kg elevator. What force on the elevator cable would be needed to lower the cat/elevator pair with an
umka21 [38]

The magnitude of force on the elevator cable that would be needed to lower the cat/elevator pair is 198 Newton.

<u>Given the following data:</u>

  • Mass of cat = 2 kg
  • Mass of elevator = 97 kg
  • Acceleration = 2 m/s^2

To determine the magnitude of force on the elevator cable that would be needed to lower the cat/elevator pair, we would apply Newton's Second Law of Motion:

First of all, we would calculate the total mass of the cat/elevator pair.

Total \;mass=2 + 97

Total mass = 99 kilograms

Mathematically, Newton's Second Law of Motion is given by this formula;

Force = mass \times acceleration

Substituting the given parameters into the formula, we have;

Force = 99 \times 2

Net force = 198 Newton

Read more here: brainly.com/question/24029674

3 0
2 years ago
15 Points , Physics HW, can someone please show me step by step how to calculate percent difference for this problem. My numbers
timofeeve [1]

The percent difference between two numbers x and y is given by

\dfrac{|y-x|}x \times 100\%

The absolute value is there because we only care about the absolute percent difference, and not taking into account whether we go from x to y or vice versa. If we remove them, we have two possible interpretations of percent difference.

For example, the (absolute) percent difference between 3 and 6 is

\dfrac{|6-3|}3 \times 100\% = 100\%

In other words, we add 100% of 3 to 3 to end up with 6. This is the same as the percent difference going from 3 to 6. On the other hand, the percent difference going from 6 to 3 is

\dfrac{3-6}3\times100\%=-50\%

which is to say, we take away 50% of 6 away from 6 to end up with 3.

"Make comparisons to object measurements" tells us that the differences should be computed relative to "measurements for object". In other words, take x from the left column and y from the right column.

\dfrac{|7.1-7.3|}{7.1} \times 100\% \approx 2.82\%

\dfrac{|4.8-5.0|}{4.8} \times 100\% \approx 4.17\%

\dfrac{|7.2-7.5|}{7.2} \times 100\% \approx 4.17\%

3 0
2 years ago
14. It takes an airplane nearly ¾ of a mile to stop. Which law of motion is being used?
swat32
Newton’s first law because the airplane needs space to fully stop due to its inertia
6 0
2 years ago
Read 2 more answers
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