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
Agata [3.3K]
4 years ago
10

A man claims that he can hold onto a 16.0-kg child in a head-on collision as long as he has his seat belt on. Consider this man

in a collision in which he is in one of two identical cars each traveling toward the other at 59.0 mi/h relative to the ground. The car in which he rides is brought to rest in 0.05 s.
Find the magnitude of the average force needed to hold onto the child.
N
Physics
1 answer:
Anna007 [38]4 years ago
5 0

Answer:

F = -8440.12 N

the magnitude of the average force needed to hold onto the child is 8440.12 N

Explanation:

Given;

Mass of child m = 16 kg

Speed of each car v = 59.0 mi/h = 26.37536 m/s

Time t = 0.05s

Applying the impulse momentum equation;

Impulse = change in momentum

Ft = ∆(mv)

F = ∆(mv)/t

F = m(∆v)/t

Where;

F = force

t = time

m = mass

v = velocity

Since the final speed of the car is zero(at rest) then;

∆v = 0 - v = -26.37536 m/s

Substituting the given values;

F = 16×-26.37536/0.05

F = -8440.1152 N

F = -8440.12 N

the magnitude of the average force needed to hold onto the child is 8440.12 N

You might be interested in
A baseball is thrown a distance of 60 meters. What is it’s speed if it takes 1.5 seconds to cover the distance
e-lub [12.9K]

Answer:

V = S / d = 60 m / 1.5 sec = 40 m/s

Note 40 m/s = 40 * 3.28 = 131 ft/sec

131 ft/sec =  131 ft/sec / (88 ft/sec / 60 mph) =   89 mi/hr

   

3 0
3 years ago
Read 2 more answers
The most intense earthquakes happen at
zhuklara [117]

Answer:

I would say d sry if im wrong

Explanation:

4 0
3 years ago
If the same satellite orbited at the same velocity around a planet with three times the force of gravity, the orbit radius would
belka [17]

Answer:

the orbit radius would be divided by 3

Explanation:

In order to orbit the planet, the centripetal force of satellite must balance the gravitational force between planet and satellite.

centripetal Force = Gravitational Force

(Ms)(V)²/r = (G)(Ms)(Mₓ)/r²

V² = GMₓ/r

where,

V = velocity of satellite

G = Gravitational Constant

Mₓ = Mass of Planet

r = orbit radius

but, G = gr²/Mₓ

Therefore,

V² = (Mₓ/r)(gr²/Mₓ)

V = √gr   --------------------- equation (1)

where,

g = force of gravity

Now, for change in force of gravity:

V' = √g'r'  

where,

g' = 3g

V' = V

Therefore,

V = √3gr'   ---------------- equation (2)

Comparing equation (1) and equation (2), we get:

√gr = √3gr'

gr = 3gr'

r = 3r'

r' = r/3

<u>Hence, the orbit radius would be divided by 3.</u>

5 0
3 years ago
If an object is accelerating,can the net force acting on it ever be
photoshop1234 [79]
Yes it can               .  .............
7 0
3 years ago
Draw the position vs. time graph for a person walking at a constant speed of 1m/s for 10 seconds. On the same axes, draw graph f
mamaluj [8]

Plot a graph, constant speed of movements represented as straight lines. Time on X axis (seconds)  and position on Y axis (metres) , calculated by moving, e.g 4metres in a second.

8 0
3 years ago
Other questions:
  • The mechanical advantage of the lever is
    8·1 answer
  • Which one of the following is an example of a redox reaction?
    10·2 answers
  • What chemical bond is formed when an equal exchange of electrons occurs?
    11·1 answer
  • Which best describes what Einstein’s theories tried to explain?
    15·2 answers
  • A hockey puck sliding at 60.0m/s slows uniformly to 20.0m/s while travelling 800.0m.
    9·1 answer
  • Although the traditional model of software acquisition still accounts for more software acquisition, a new model, called ____, i
    6·1 answer
  • Determine the vertex form of g(x) = x2 + 2x - 1. Which graph represents g(x)?<br> 5) Intro
    9·1 answer
  • 33] You have long hair, you should:
    9·2 answers
  • While researching scuba diving, Pablo reads how hot a tank should get while being filled with air. Which law best explains why t
    14·2 answers
  • You are one of the forensic anthropologist working on the Romanov Family investigation. You and your team are trying to determin
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!