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
krek1111 [17]
3 years ago
5

At t = 0 the components of a radio-controlled car's velocity are vx = 0.5 m/s and vy = 1.2 m/s. Find the components of the car's

velocity at t = 2.6 s, given that the components of its average acceleration during this period are ax = 2 m/s2 and ay = -1 m/s2.
Physics
1 answer:
FinnZ [79.3K]3 years ago
5 0

Answer:

x-component of velocity = 5.7 m/s

y-component of velocity = -1.4 m/s          

Explanation:

Use first equation of motion to find components of velocity at a given time:

v = u + at

where, v is  the final velocity, u is the initial velocity, a is the acceleration and t is the time.

Given:

u_x= 0.5 m/s\\u_y=1.2 m/s\\a_x=2 m/s^2\\a_y=-1m/s^2\\t = (2.6-0)s =2.6 s

v_x=u_x+a_xt\\\Rightarrow v_x=0.5+2\times 2.6\\\Rightarrow v_x=5.7 m/s

v_y=u_y+a_yt\\\Rightarrow v_y=1.2-1\times 2.6\\\Rightarrow v_y=-1.4 m/s

You might be interested in
Question 1 of 5<br> In which way are electromagnetic waves different from mechanical waves?
Lina20 [59]

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Explanation:

8 0
2 years ago
Read 2 more answers
How are mass and inertia related?
aleksandr82 [10.1K]
The greater the mass the greater is inertia.
7 0
3 years ago
What is true about resistance? Check all that apply. A. It is the excess accumulation of electric charge B. It is measured in oh
Alekssandra [29.7K]

Answer:

B, C and E

Explanation:

The unit of resistance in the international system is the Ohm, the equation that describes the resistance is:

R=p\frac{l}{S} \\

Where (l) is for lenght of the wire, (S) is the area and (p) its the constant associated to the conductor.

It's related by the Ohm's Law:

R=\frac{V}{I}

3 0
3 years ago
Think about holding a glass of cold water. Your hand is warmer than the glass. Do the particles in your hand or those in the gla
choli [55]

technically usually the warmer object/substances particles move master which causes friction among the particles plus the kinetic energy being converted to thermal energy, so i would say the hand.

6 0
3 years ago
A train travels 50 kilometers in 4 hours, and then 74 kilometers in 2 hours. What is its average speed?
olga55 [171]

Answer:

37.65

Explanation:

50/4 + 74/2

4 0
3 years ago
Read 2 more answers
Other questions:
  • Your pet snake would be found in which kingdom:
    11·1 answer
  • While a kettle boils, 0.018kg of water changes to steam
    14·1 answer
  • What is sap?
    15·2 answers
  • Nuclear binding energy is necessary to overcome which of the following? Einstein's mass defect
    14·1 answer
  • a man exerts 3000.00N of force to push a car 35.00 meters in 90.00 seconds.... 1. what is the work done 2.what is the power gene
    7·1 answer
  • A 6,000 kg train car is moving to the right at 10 m/s and connects to a 4,000-kg train car that wasn't moving. What is the veloc
    10·1 answer
  • In a posteroanterior (pa) projection of the chest being used for cardiac evaluation, the heart measures 14.7 cm between its wide
    8·1 answer
  • 20 points + Brainliest. Please help!
    12·1 answer
  • A 2.0 kg stone is tied to a 0.30 m string and swung around a circle at a constant angular velocity of 12.0 rad/s. The net torque
    8·1 answer
  • A force of 100N moves a body on a horizontal frictionless surface when......
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!