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
n200080 [17]
3 years ago
11

David hops in his 600-kg dune buggy and travels 20 m/s to the east.  Meanwhile, Serap drives her 500-kg dune buggy at 30 m/s eas

t and tries to catch David.
What is davids momentum?

what is serap's momentum

what is the total momentum of the entire system?
​
Physics
1 answer:
san4es73 [151]3 years ago
7 0

1) David's momentum is 12,000 kg m/s east

2) Serap's momentum is 15,000 kg m/s east

3) The total momentum is 27,000 kg m/s east

Explanation:

1)

The momentum of an object is given by

p=mv

where

m is the mass of the object

v is its velocity

In this problem, we have:

m = 600 kg is the mass of David+his dune buggy

v=20 m/s is their velocity (taking east as positive direction)

Therefore, David's momentum is:

p_d = (600)(20)=12,000 kg m/s

And the direction is the same as the velocity (east).

2)

Again, we can use the same equation:

p=mv

where this time

m is the mass of Serap+dunebuggy

v is their velocity

In this problem,

m = 500 kg is the mass of Serap + dunebuggy

v = 30 m/s is their velocity (positive since it is also in the east direction)

Substituting, we find

p_s = (500)(30)=15,000 kg m/s

And the direction is the same as the velocity (east).

3)

The total momentum of the entire system is given by

p = p_d + p_s

where

p_d is David's momentum

p_s is Serap's momentum

In this problem, we have the following data, found in the previous parts:

p_d = 12,000 kg m/s

p_s = 15,000 kg m/s

The two momentum have same direction (east), so we can simply add them together to find the total momentum:

p=12,000 + 15,000 = 27,000 kg m/s

And the direction is still East.

Learn more about momentum:

brainly.com/question/7973509

brainly.com/question/6573742

brainly.com/question/2370982

brainly.com/question/9484203

#LearnwithBrainly

You might be interested in
A force of 265.1 N acts on an object to produce an acceleration of 14.52 m/s^2. What is the mass of the object?
astra-53 [7]

The answer is :


18.26


Hope I helped.

6 0
3 years ago
Read 2 more answers
In Millikan's experiment, an oil drop of radius 1.362 μm and density 0.888 g/cm3 is suspended in chamber C when a downward-point
Misha Larkins [42]

Answer:

The charge on the oil drop is 3e

Explanation:

F = qE

Where;

F is the applied force in Newton

E is the electric field potential N/C

q is charge in C

Given;

Radius, r = 1.362 μm = 1.362 X 10⁻⁶ m

density, ρ = 0.888 g/cm³ = 0.888 X 10³ kg/m³

Electric field potential = 1.92 ✕ 10⁵ N/C

F =mg

mass of the oil drop = density, ρ  X volume of the oil drop

volume of the oil drop (spherical) =  (4/3)πr³ = 1.3333π(1.362 X 10⁻⁶)³

⇒ volume of the oil drop = 10.584 X 10⁻¹⁸ m³

mass of the oil drop = 0.888 X 10³ (kg/m³) X 10.584 X 10⁻¹⁸ (m³)

⇒ mass of the oil drop = 9.399 X 10⁻¹⁵ kg

⇒ F =mg = 9.399 X 10⁻¹⁵ kg X 9.8 = 9.21 X10⁻¹⁴ N

F = qE

q = F/E

q = (9.21 X10⁻¹⁴)/(1.92 ✕ 10⁵) = 4.797 X 10⁻¹⁹ C

In terms of e

1e = 1.6 X10⁻¹⁹ C

=  (4.797 X 10⁻¹⁹ C)/(1.6 X10⁻¹⁹ C) = 3e

Therefore, the charge on the oil drop is 3e

7 0
2 years ago
Please help me i em doing a test
Aleks [24]

Answer:

Student 2 protons and valence electrons

8 0
2 years ago
Read 2 more answers
When 1 kg of water and 1 kg of wood absorb the same amount of heat, the change in temperature of the wood is greater than the ch
Strike441 [17]

Intermolecular forces in water are greater than those in wood. APEX

6 0
3 years ago
A torque of 0.77 N⋅m is applied to a bicycle wheel of radius 30 cm and mass 0.70 kg
Naddik [55]

Answer:

α = τ/I = 0.77 / (0.70(0.30²)) = 12.22222... = 12 rad/s²

Explanation:

4 0
3 years ago
Other questions:
  • a 4lb ball is travelling in a circle radius 3ft speed 6ft/s. the attached cord pulled through the center has constant speed 2ft/
    7·1 answer
  • The area of a triangle is 30 m². Using the equation A=12bh A = 1 2 b h , where b is base and h is height, solve for h if b = 3 m
    6·1 answer
  • What is reflection of light
    7·2 answers
  • A simple pendulum consists of a point mass suspended by a weightless, rigid wire in a uniform gravitation field. Which of the fo
    6·1 answer
  • Please help.: Sliding from left to right in a straight line on a horizontal steel surface, an aluminum block weighing 20 newtons
    12·2 answers
  • Which of the following correctly defines the speed of a wave?
    5·2 answers
  • Hi so this is 15 points :D
    7·1 answer
  • Find the force of gravity between a cubic meter of water (1000kg) and the Sun. The Sun's mass is 1.99 x10^30 kg and is 1.50 x10^
    15·1 answer
  • Two spheres A and B are projected off the edge of a 1.0 m high table with the same horizontal velocity . sphere A has a mass of
    11·1 answer
  • What is the force of gravity between two 50.0kg masses that are separated by 0.300m?3.71x10-8N5.59x10-7N2.78x104N1.85x10-6N
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!