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
Anestetic [448]
2 years ago
13

A car driver traveling at a speed of 108km per hour ,sees a traffic light and stopped after travelling for 20seconds .Find the a

cceleration of the car​
Physics
1 answer:
navik [9.2K]2 years ago
6 0

Answer:

– 2.5 m/s²

Explanation:

We have,

• Initial velocity, u = 180 km/h = 50 m/s

• Final velocity, v = 0 m/s (it stops)

• Time taken, t = 20 seconds

We have to find acceleration, a.

\longrightarrow a = (v ― u)/t

\longrightarrow a = (0 – 50)/20 m/s²

\longrightarrow a = –50/20 m/s²

\longrightarrow a = – 5/2 m/s²

\longrightarrow a = – 2.5 m/s² (Velocity is decreasing) [Answer]

You might be interested in
How are wave properties and energy related?<br> EXPLAIN
dexar [7]

Answer:

The higher the amplitude, the higher the energy. To summarise, waves carry energy. The amount of energy they carry is related to their frequency and their amplitude. The higher the frequency, the more energy, and the higher the amplitude, the more energy.

6 0
2 years ago
¿Cuál es la magnitud y dirección de la aceleración de los cuerpos en caída libre en el planeta Tierra?
Tatiana [17]

La magnitud es de 9.8 m/s² ... la aceleración de la gravedad en o cerca de la superficie de la Tierra.

La dirección es hacia el centro de la Tierra. (Llamamos a esa dirección "abajo").

6 0
3 years ago
The biggest reason that some fuels are considered nonrenewable
zhuklara [117]
Because many fuels are fossil fuels they take millions of years to form and the known reserves are being used much faster than the new ones being made
4 0
3 years ago
Soil conservation involves protecting _______ and preventing _______.
Naddika [18.5K]
<span>Soil conservation involves protecting soil quality and preventing erosion </span>
7 0
3 years ago
Read 2 more answers
Un bloque de 25 n se encuentra suspendido por un hilo al techo vitamina la tensión que aparece en el hilo
SVETLANKA909090 [29]

Answer:

T = 25 N

Explanation:

The question says that "A 25 n block is suspended by a wire from the ceiling vitamin the tension that appears in the wire ?"

Weight of the block, W = 25 N

Weight of a body acts in downward direction and tension acts in upward direction. It would mean that,

Tension = weight of the block

T = mg

T = 25 N

Hence, the tension in the wire is 25 N.

7 0
3 years ago
Other questions:
  • If it takes Ashley 6.1 seconds to run at an average speed of 5.7 meters per second, what is the distance (in meters) she covers
    6·1 answer
  • The absolute magnitude of a star is the amount of light received by Earth. true or false
    14·2 answers
  • What is another name for matter/material
    11·1 answer
  • A runner runs the first 400m of a race in 80s, the second 400m in 70s and the final 800m in 130s. What was her average speed for
    14·1 answer
  • What is the two-step procedure that congress follows when appropriating money
    5·1 answer
  • Which would take more force to stop in 10 seconds: an 8.0-kilogram ball rolling in a straight line at a speed of 0.2 m/sec or a
    13·2 answers
  • What Determines the amount of TE of an object
    5·2 answers
  • A physics teacher is designing a ballistics event for a science competition. The ceiling is 3.00m high, and the maximum velocity
    12·1 answer
  • A parachute falling to the ground.<br><br>​
    8·1 answer
  • To reduce auto emissions in the United States, modifications to automobile engines have been required since the 1960s.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!