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
Fed [463]
1 year ago
15

male lions and human sprinters can both accelerate at about 10.0 m/s2. if a typical lion weighs 170 kg and a typical sprinter we

ighs 75 kg, what is the difference in the force exerted by the ground during a race between these two species? (both the forward and normal forces should be calculated.)
Physics
1 answer:
Rasek [7]1 year ago
3 0

The difference in the force exerted by the ground during a race between these two species is 259.25

<h3>What is force?</h3>

Forces are influences that can change the movement of an object. A force can change the velocity of an object with mass, i.e. accelerate it. Forces can also be described intuitively by pushing or pulling. A force has both magnitude and direction and is a vector quantity.

Force exerted by the lion:

Normal force = mg

170 = m × 9.8

m = 17.34 kg

Forward force = ma

= 17.34 × 10.0

= 173.4 N

Total force = Normal force + Forward force

Total force = 170 + 173.4

= 343.4 N

Force exerted by the man:

Normal force = mg

75 = m × 9.8

m = 7.65 kg

Forward force = ma

= 7.65 × 10.0

= 76.5 N

Total force = Normal force + Forward force

Total force = 7.65 + 76.5

= 84.15 N

The difference in the forces exerted by these species is:

343.4 N - 76.5 N = 259.25 N

To know more about force visit:

brainly.com/question/19734564

#SPJ4

You might be interested in
Why do farmers need to use strategies like crop rotation?
Mrrafil [7]

Answer:

Crops drain the soil of nutrients

Explanation:

i took the test:) yw

6 0
2 years ago
Read 2 more answers
A hot-air balloon is ascending at the rate of 12 m/s and is 80 m above the ground when a package is dropped over the side. (a) H
Debora [2.8K]

Answer:

Explanation:

Given

balloon is ascending at the rate of u=12\ m/s

Balloon is at a height of s=80\ m

As the package is dropped from the balloon it must possess the same initial velocity as the balloon

using

v^2-u^2=2as  

where v=final velocity

u=initial velocity

a=acceleration

s=displacement

v^2=12^2+2\times 9.8\times 80

v^2=1712

v=41.37\ m/s

time taken is  given by

v=u+at

substituting values

41.37=-12+9.8\times t

as we consider downward direction as positive

t=\frac{53.37}{9.8}

t=5.44\ s

therefore time taken to reach the bottom is t=5.44 s                                            

6 0
3 years ago
Which is the symbol for gold?
OLga [1]

Answer:

Au

Explanation:

Look at a periodic table it can help you a lot.

6 0
3 years ago
Read 2 more answers
If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the
PolarNik [594]

Answer:

a. v₁ = 16.2 m/s

b. μ = 0.251

Explanation:

Given:

θ = 15 ° , r = 100 m , v₂ = 15.0 km / h

a.

To determine v₁ to take a 100 m radius curve banked at 15 °

tan θ  = v₁² / r * g

v₁ = √ r * g * tan θ

v₁ = √ 100 m * 9.8 m/s² * tan 15° = 16.2 m/s

b.

To determine μ friction needed for a frightened

v₂ = 15.0 km / h * 1000 m / 1 km * 1h / 60 minute * 1 minute / 60 seg

v₂ = 4.2 m/s

fk = μ * m * g

a₁ = v₁² / r = 16.2 ² / 100 m = 2.63 m/s²

a₂ = v₂² / r = 4.2 ² / 100 m = 0.18 m/s²

F₁ = m * a₁  ,  F₂ = m * a₂

fk = F₁ - F₂   ⇒  μ * m * g = m * ( a₁ - a₂)

μ * g = a₁ - a₂   ⇒  μ = a₁ - a₂ / g

μ = [ 2.63 m/s² - 0.18 m/s² ] / (9.8 m/s²)

μ = 0.251

3 0
3 years ago
A gamma ray and a microwave traveling in a vacuum have the same?
kaheart [24]
They have the same speed 
7 0
3 years ago
Read 2 more answers
Other questions:
  • A wall clock has a minute hand with a length of 0.53 m and an hour hand with a length of 0.26 m. Take the center of the clock as
    5·1 answer
  • What terms describes an atom's tendency to hold onto electrons
    5·2 answers
  • Please help me i give 60 point i need help now
    10·1 answer
  • The abc battery company claims that their batteries last 100 hours, on average. you decide to conduct a test to see if the compa
    6·1 answer
  • Which is greater, the mass of the compounds before a chemical reaction or the mass of the compounds after a chemical reaction?
    9·1 answer
  • Which of the following is a definition of acceleration? *
    8·1 answer
  • The Milky Way is our home galaxy. Which of the following are the main components of a galaxy?
    9·1 answer
  • How many spoonfuls of water did it take for your sponge to be 100% saturated?
    6·1 answer
  • A 60.kg giri roils down a frictionless hill on a skateboard. At the bottom of the hill, she is traveling at a speed of 30. m/s.
    15·1 answer
  • Why electromagnetic energy is renewable? Explain.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!