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
sineoko [7]
3 years ago
13

A fox is 7 meters from the base of a tree that is 15 m tall. A nest of owls is at the top of the tree. One of the owlets tosses

a piece of meat horizontally from the nest at 1.2 m/s. The fox runs to catch the meat just before it hits the ground. What is the speed of the fox just as he catches the meat?

Physics
1 answer:
mamaluj [8]3 years ago
5 0
Refer to the diagram shown below.

In this analysis, wind resistance is ignored, and g = 9.8 m/s².

The meat falls with zero vertical velocity, therefore the time, t, before the meat hits the ground is
\frac{1}{2}*(9.8 \, \frac{m}{s^{2}})*(t \, s)^{2} = (15 \, m) \\ t= \sqrt{ \frac{15}{4.9} }= 1.75 \, s

If the fox catches the meat before it hits the ground, then the fox should travel a horizontal distance d in the same time that the meat travels a horizontal distance (7 -d).
The meat travels a distance of 
7 - d = (1.2 m/s)*(1.75 s) = 2.1 m
or
d = 4.9 m

Let v =  velocity of the fox when it catches the meat.
If the acceleration of the fox is a m/s², then
v = 1.75a
Also,
d= \frac{1}{2} *(a \,  \frac{m}{s^{2}} )*(1.75 \, s)^{2} =  \frac{1}{2}( \frac{v}{1.75})^{2}*(1.75^{2})  \\ 4.9 = 0.875v^{2} \\ v^{2} = 5.6 \\ v = 2.366 \, m/s

Answer:  2.37 m/s  (nearest hundredth)



You might be interested in
Plants make food through photosynthesis, and photosynthesis takes place mostly in plant leaves, but when plants lose their leave
Nastasia [14]

Answer:

The answer is not B or D because they need light co2 and water to make their food so B and D are out. and unless someone is walking during winter to feed it. It will not be A so the answer is C.

Explanation:

3 0
3 years ago
The main difference between speed and velocity involves
AysviL [449]
Direction. Velocity is a vector that describes both speed and direction, while speed is a scalar that describes only speed regardless of direction.
4 0
3 years ago
A colloidal liquid in a has is called
S_A_V [24]
Aerosol is the answer
8 0
3 years ago
A. How does the speed of light in a vacuum change when observed from two different frames of reference?
anyanavicka [17]

a) It is absolute, so it does not change.

b) Inertial ones.

c) Inside the train the time will slow down relatively to the outside clock. So if one travel at nearly the speed if light for 2 hours on his clock, for outdoor observers it will look like 3 hours.

4 0
3 years ago
Read 2 more answers
What is the law of inertia ?​
DENIUS [597]

Answer:

tqm-apwk-wix

join join

6 0
3 years ago
Read 2 more answers
Other questions:
  • A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls
    12·2 answers
  • A women who normally weighs 400 N stands on top of a ladder so high she is one full additional earth radius above the surface of
    7·1 answer
  • A source emits monochromatic light of wavelength 495 nm in air. when the light passes through a liquid, its wavelength reduces t
    9·1 answer
  • The width of a particular microwave oven is exactly right to support a standing-wave mode. Measurements of the temperature acros
    9·1 answer
  • The electric force between electric charges is much larger than the gravitational force between the charges. Why, then, is the g
    14·1 answer
  • A 55.0 kg runner who weighs 539.0 N is accelerating at 3.2 m/s2. After 2
    5·2 answers
  • Tectonic plates move ________. A. about a kilometer per year B. at different speeds C. about one yard per year D. at the same sp
    11·1 answer
  • How fast would a(n) 85 kg man need to run in order to have the same kinetic energy as an 8.0 g bullet fired at 410 m/s?
    14·1 answer
  • TRUE OR FALSE Determine if the following statements are true or false.
    11·1 answer
  • Sally and Suzy are moving into their first college dorm together. They are loading all their furniture onto a truck with a ramp
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!