1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fredd [130]
3 years ago
14

ANSWER PLEASE!!! I NEED THE HORIZONTAL DISPLACEMENT!!!! A small plane is flying at 85 m/s as it passes directly over your brand-

new car when a passenger drops his backpack. It takes 9 seconds for the backpack to fall to the ground. You are very worried that the backpack will land on your new car and you wonder if you should move it. What will be the horizontal displacement of the backpack as it fall? Should you move your car?
Physics
2 answers:
Vladimir79 [104]3 years ago
7 0

Answer: Δx = vxt = (85 m/s)(9s) = ? m

Explanation:

If the plane is in level flight,

 

Δx = vxt = (85 m/s)(9s) = ? m

 

Note that if Δx ≠ 0, it will not land on the car.

Inga [223]3 years ago
4 0

The values for the horizontal displacement and repositioning of the car are;

As it falls, the backpack will have a maximum horizontal displacement (away from the car) of <u>795 meters</u>

The <u>car should remain</u> in its current position; Do not move the car

The reason the above values are correct is as follows;

The known information about the airplane, the backpack and the car are;

The speed of the airplane = 85 m/s

The time it takes the backpack to fall to the ground, t = 9 seconds

The position of the airplane when the backpack is dropped = Directly over the brand new car

Required:

  • The horizontal displacement of the backpack as it falls
  • Should the car be moved

Solution to the first question:

The horizontal displacement of the backpack = Horizontal velocity × Time, t

According to Newton's First Law of motion, the velocity of the backpack at the point it was dropped is the same as the velocity of the airplane

Given that the velocity of the airplane given is the horizontal velocity, we have;

The horizontal velocity of the backpack = 85 m/s

The displacement of the backpack = 85 m/s × 9 s = 795 m

  • The horizontal displacement of the backpack as it falls = <u>795 meters</u> in front of the car

Solution to the second question:

Given that the backpack will land 795 meters in front, away from the car, the car is safe if it remains in its current position

  • <u>The car should </u><u>not </u><u>be </u><u>moved</u>

<u />

Learn more about horizontal displacement of an object in free fall here:

brainly.com/question/13372763

You might be interested in
a length 650 cm of thin thread wraps around a cylinder exactly 30 times calculate the circumference and the radius of the cylind
Eduardwww [97]

Answer:

circumference= 65/3  cm = 21.67 cm

radius R = 3.45 cm

Explanation:

To calculate the length of the circumference of the cylinder, we divide 650 cm by 30 (the number of times it wrapped exactly around it)

length of circumference= 65/3  cm = 21.67 cm

now use the formula of the circumference length to find the radius (R):

circumference length = 2 * pi * R

65/3 = 2 * pi * R

R = 65 / (6 pi)

R = 3.45 cm

5 0
3 years ago
Hi :) I don’t really understand why it’s A
Troyanec [42]

Answer:

A

Explanation:

1. When the block moves across a table top, F(pulling) = - F(frictional).

Sum of this forces = 0, so the block moves with uniform speed.

2. When the block is pulled on top of the table covered with beads

F(pulling) > - F(frictional).

So, the sum of forces (∑F) is a number that is more than 0 and directed to the direction of movement.

So,  a = ∑F / m is positive and constant. Speed is increasing because

v(t) = v(0)+at

a is constant and  directed forward.

That means a is acceleration, and constant.

6 0
4 years ago
How does the mass-energy equation e = mc2 relate to fission
Strike441 [17]
It relates because<span> the </span>energy<span> of an object to its </span>mass and since fission requires energy to do so, e=mc^2 relates to it.
3 0
4 years ago
Read 2 more answers
What is the half-life of a radioisotope
nadezda [96]
Half-life<span> is defined as the time it takes for one-</span>half<span> of the atoms of a radioactive material to disintegrate. </span>Half-lives<span> for various </span>radioisotopes<span> can range from a few microseconds to billions of years.</span>
5 0
3 years ago
Read 2 more answers
Explain what would happen to an animal if the vegetation around them disappeared​
lara [203]

Answer:

he type of vegetation growing in the buffer affects its usefulness to wildlife through the availability of food, foraging and nesting sites, and other habitat needs (Johnson and Beck 1988). The more diverse the habitat, the greater its utility to many species of animals.

Explanation:

3 0
2 years ago
Other questions:
  • A static charge that is produced by a nearby objet is an?
    5·1 answer
  • a satellite with a geostationary orbit travels at a constant speed of 1676401km/h if it takes the satellite 24 hours to revolve
    6·1 answer
  • Two balls are on a frictionless horizontal tabletop. Ball x initially moves at 10 meters per second, as shown in Figure 1 above.
    8·1 answer
  • List three space telescopes and describe the type of radiation studied by each
    15·1 answer
  • • Most of the galaxies in the universe are moving away from
    8·1 answer
  • (8c7p26) During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with lar
    9·1 answer
  • What is the speed of a wave with a wavelength of 10 mm and a frequency of 5.0 Hz?
    12·2 answers
  • In order to stop a heavier (or more massive) object, which of the following is true?
    13·1 answer
  • The person protected by insurance policy
    12·1 answer
  • T or F: In situations of inhalation poisoning, you should call for help before you attempt a rescue.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!