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
Serjik [45]
2 years ago
5

An airplane is moving at a speed of 75m/s as it lands on a runway. if the runway is 500 m long what is the acceleration of the p

lane as it slows to a stop
Physics
1 answer:
Ipatiy [6.2K]2 years ago
5 0

Answer:

-5.625 m/s^2

Explanation:

Use the kinematic equation v_{f}^{2} = v_{o}^{2} + 2ad

Substitute the values and solve for a.

0^2 = 75^2 + a 2 (500)

0 = 5625 + 1000a

-5625 = 1000a

-5.625 = a

You might be interested in
Con base en el tema ley de ohm, resistividad y resistencia resuelva los siguientes
Bumek [7]
Answer:Explanation:gfgfgfgfgfgfgfgfgfg
3 0
3 years ago
Hydrogen is found as a gas on Earth but exists in all four states in the solar
Viefleur [7K]

Answer: the sample of solid has less energy than the sample of gas

Explanation:

APEX

5 0
3 years ago
A 1300 kg car traveling at 35 mph rear-ends a 1000 kg car traveling 25 mph. Just after the collision (but before the driver’s sl
guajiro [1.7K]

Answer

given,

before collision

mass of car A = m_a = 1300 kg

velocity of car A = v_a  = 35 mph

mass of car B = m_b= 1000 kg

velocity of car B = v_b  = 25 mph

after collision

V_a = 30 mph

V_b = 31.5 mph

Initial momentum

P_1 = m_av_a + m_b v_b

P_1 = 1300 \times 35+ 1000 \times 25

P_1 =70500 Kg.m/s

final momentum

P_2 = m_aV_a + m_b V_b

P_2 = 1300 \times 30+ 1000 \times 31.5

P_2 =70500 Kg.m/s

here  initial momentum is equal to the final momentum of the car.

hence, momentum is conserved in the collision.

6 0
3 years ago
How much time would it take for an airplane to reach its destination if it traveled at an average velocity of 820 km/hr NE for a
Vladimir79 [104]

Answer:

Time, t = 6.34 hours.

Explanation:

Velocity can be defined as the rate of change in displacement (distance) with time. Velocity is a vector quantity and as such it has both magnitude and direction.

Mathematically, velocity is given by the equation;

Velocity = \frac{displacement}{time}

Therefore, making time the subject of formula;

Time = \frac{displacement}{velocity}

Given the following data;

Displacement = 5200km

Average velocity = 820km/hr

Substituting into the equation, we have;

Time = \frac{5200}{820}

Time = 6.34 hours.

<em>Hence, it would take 6.34 hours for the airplane to reach its destination. </em>

5 0
3 years ago
We know we have exerted of force even when we have done no work this is called _____
zheka24 [161]

Answer: The correct answer is zero work done.

Explanation:

Work is said to be done when the object moves through a distance when the force is applied to the object.

If the object does not move a distance even the force is exerted on the object then the work done is zero in this case.

Therefore, when the force is exerted even when no work is done then this is called zero work done.

5 0
3 years ago
Other questions:
  • You apply a force to a cart. The force that you apply is directed to the right. Assume that there is friction acting on the cart
    10·1 answer
  • Can anyone explain the seasons of the earth?
    7·1 answer
  • If you rub an inflated balloon against your hair and place it against a door, by what mechanism does it stick? explain.
    6·1 answer
  • You must record your daily workouts on a
    7·2 answers
  • Bud, a very large man of mass 130 kg, stands on a pogo stick. How much work is
    5·1 answer
  • Compare the wavelengths of an electron (mass = 9.11 × 10−31 kg) and a proton (mass = 1.67 × 10−27 kg), each having (a) a speed o
    15·1 answer
  • (Brainliest) How are radio waves used in cell phone wireless communication technology?
    12·1 answer
  • Comon help me out here
    14·1 answer
  • A small object begins a free-fall from a height of =81.5 m at 0=0 s . After τ=2.20 s , a second small object is launched vertica
    5·1 answer
  • Under state law, what is the blood-alcohol limit for legally operating a motor vehicle?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!