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
Anika [276]
2 years ago
12

A stuntman drives a car with a mass of 1500 kg on a drawbridge. The car accelerates with a constant force of 10,000 N. While he

is driving, the drawbridge is raised to an incline of 30°. What is the car's new acceleration on this incline, ignoring the force due to air resistance? (recall that g=9.8 m/s^2)
Physics
1 answer:
Viktor [21]2 years ago
7 0

Answer:

1.77 m/s^2

Explanation:

There are two forces acting on the car along the direction parallel to the incline:

- The driving force of 10,000 N, which pushes forward

- The component of the weigth of the car parallel to the incline, which pulls backward

The component of the weight of the car parallel to the incline is:

W_p = mg sin \theta=(1500 kg)(9.8 m/s^2)( sin 30^{\circ})=7350 N

So now we can apply Newton's second law to find the acceleration of the car:

F-W_p = ma\\a=\frac{F-W_p}{m}=\frac{10000 N-7350 N}{1500 kg}=1.77 m/s^2

You might be interested in
SO MANY POINTS! WILL MARK BRAINIEST!!!! PLZ BE FASSTT!
lora16 [44]

Answer:  Point A is the answer for the potential energy. Point D is the answer for the kinetic energy.

Explanation:

4 0
3 years ago
How could the man in the image better improve his posture?
Nadusha1986 [10]

Answer:

B

Explanation:

if you sit up straight you will have a proper posture

3 0
3 years ago
Read 2 more answers
Andy has two strong magnetic marbles of equal size. What will happen when he puts the two marbles about 2 centimeters apart?
VikaD [51]
I believe it would be C
5 0
3 years ago
Read 2 more answers
Your lab instructor has asked you to measure a spring constant using a dynamic method—letting it oscillate—rather than a sta
yuradex [85]

Answer:

  k = 6,547 N / m

Explanation:

This laboratory experiment is a simple harmonic motion experiment, where the angular velocity of the oscillation is

         w = √ (k / m)

angular velocity and rel period are  related

         w = 2π / T

substitution

         T = 2π √(m / K)

in Experimental measurements give us the following data

  m (g)     A (cm)    t (s)   T (s)

  100        6.5         7.8    0.78

  150        5.5          9.8   0.98

   200      6.0        10.9    1.09

   250       3.5        12.4    1.24

we look for the period that is the time it takes to give a series of oscillations, the results are in the last column

        T = t / 10

To find the spring constant we linearize the equation

        T² = (4π²/K)    m

therefore we see that if we make a graph of T² against the mass, we obtain a line, whose slope is

         m ’= 4π² / k

where m’ is the slope

           k = 4π² / m'

the equation of the line of the attached graph is

       T² = 0.00603 m + 0.0183

therefore the slope

       m ’= 0.00603  s²/g

    we calculate

         k = 4 π² / 0.00603

          k = 6547 g / s²

we reduce the mass to the SI system

         k = 6547 g / s² (1kg / 1000 g)

         k = 6,547 kg / s² =

         k = 6,547 N / m

let's reduce the uniqueness

         [N / m] = [(kg m / s²) m] = [kg / s²]

7 0
2 years ago
8. Express 2.69 x 10^9 in standard form.
taurus [48]

Answer:

242.1

Explanation:

10 x 9 equals 90

2.69 x 90 = 242.1

5 0
2 years ago
Other questions:
  • A block lies on a horizontal frictionless surface. A horizontal force of 100 N is applied to the block giving rise to an acceler
    14·1 answer
  • Calculate the magnitude of the acceleration due to gravity on the surface of Earth due to the Moon.
    13·1 answer
  • Consider an element with energy levels E 0 and E ∗ and degeneracies of those energy levels g 0 and g ∗ , respectively. Determine
    10·1 answer
  • When is the next total solar eclipse in the world?
    8·1 answer
  • A dolphin in an aquatic show jumps straight up out of the water at a velocity of 15.0 m/s. (a) List the knowns in this problem.
    5·1 answer
  • Which of the following represents the velocity of an object?
    11·1 answer
  • By what factor must the amplitude of a sound wave be increased in order to increase the intensity by a factor of 9?a. 9 b. 2 c.
    8·2 answers
  • A net force of 345 N accelerates a boy on a sled at 3.2 m/s^2 . What is combined mass of the sled
    9·1 answer
  • Which statement describes how a machine can help make work easier? It can put out more force than the input force by decreasing
    14·2 answers
  • A carriage of 20 kg is pulled with a force of 35 N. How far the carriage will go
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!