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
zaharov [31]
3 years ago
6

A truck speeds up from velocity of 6m/s to 14m/s in 4 seconds. what is the trucks acceleration?

Physics
1 answer:
Tanzania [10]3 years ago
3 0

To calculate the acceleration of the truck, we use the equation of motion

v = u + at

Here, v is final velocity of the truck, u is initial velocity of truck, a is acceleration of the truck and t is time taken.

Given,  u = 6 m/s, v = 14 m/s and t = 4 s.

Substituting these values in above equation, we get

14 \ m/s = 6 \ m/s + a \times 4 \ s \\\\  a = \frac{14 \ m/s - 6 \ m/s}{ 4 \ s } =  2 \ m /s^2.

Thus,  the truck acceleration is 2 \ m /s^2

You might be interested in
A 1000 kg rocket carrying 25 kg of fuel and oxygen rises at a velocity of 305 m/s. If all the mass of fuel and oxygen is burned
Thepotemich [5.8K]

If all the mass of fuel and oxygen is burned to form gases of combustion, the downward velocity of these gases would be 12,505 m/s.

<h3>Conservation of linear momentum</h3>

The principle of conservation of linear momentum states that, the total momentum of an isolated system is constant.

The downward velocity of thes gases is calculated as follows;

v1(m1 + m2) = v2(m2)

305(1000 + 25) = v2(25)

312,625 = 25v2

v2 = 312,625/25

v2 = 12,505 m/s

Thus, If all the mass of fuel and oxygen is burned to form gases of combustion, the downward velocity of these gases would be 12,505 m/s.

Learn more about linear momentum here: brainly.com/question/7538238

5 0
2 years ago
A light spring having a force constant of 115 N/m is used to pull a 9.00 kg sled on a horizontal frictionless ice rink. The sled
Ksivusya [100]

Answer:

Stretch in the spring = 0.1643 (Approx)

Explanation:

Given:

Mass of the sled (m) = 9 kg

Acceleration of the sled (a) = 2.10 m/s ²

Spring constant (k) = 115 N/m

Computation:

Tension force in the spring  (T) = ma

Tension force in the spring  (T) = 9 × 2.10

Tension force in the spring  (T) = 18.9 N

Tension force in the spring = Spring constant (k) × Stretch in the spring

18.9 N = 115 N  × Stretch in the spring

Stretch in the spring = 18.9 / 115

Stretch in the spring = 0.1643 (Approx)

8 0
3 years ago
The mcb of rupa's room is tripped and keeps on tripping again and again . if it is a domestic circuit, what could be the reason
kap26 [50]

Overloading

Explanation:

The reason reason why the mcb of rupa's room keeps tripping is due to the fact that excessive current has being supplied to his room.

MCB stands for a miniature circuit breaker.

A miniature circuit breaker opens up the electrical circuit by switching it off when there is overloading or faulty connections.

  • A MCB helps to control the flow of current and it is designed to hand certain limits of electrical voltage.
  • If the MCB keeps tripping, it suggests a surge in current supplied, overloading or probably a faulty connection.

learn more:

Circuit brainly.com/question/12472944

#learnwithBrainly

4 0
3 years ago
Referring to the diagram above, predict what will happen when the switch is closed. Explain your answer.
alisha [4.7K]

Answer

The nail will become an electromagnet.

Explanation

When the switched is closed , a current will flow in the insulated wire. Then the current flows through the coil around the iron nail, it will induce am magnetic filed inside the nail.  The nail becomes a magnet because it is made of magnetic material.  As long as there is current flowing through the current, there nail will remain a magnet.


7 0
3 years ago
PLEASE HELP!!!!! How are energy and the amplitude of a wave related?
ycow [4]

Answer:

increase

Explanation:

because the all the are are involved

7 0
3 years ago
Other questions:
  • The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out. The resistance R is slowly increasin
    8·1 answer
  • Which of the following is an example of an anaerobic exercise?
    8·1 answer
  • The vertical deflecting plates of a typical classroom oscilloscope are a pair of parallel square metal plates carrying equal but
    5·1 answer
  • Where is paramcium normally found?
    8·2 answers
  • Does research lessen its value for its being cyclical? Enumerate Two Possible advantages of a cyclical research
    5·1 answer
  • A car is driving on the road. The car starts to decelerate at -3 m/s2. It stops moving after 125
    6·1 answer
  • Un muelle se alarga 20 cm cuando ejercemos sobre él una fuerza de 24 N. Calcula:El valor de la constante elástica del muelle
    12·1 answer
  • The sun's energy begins as what form of energy?
    11·1 answer
  • How many lines does each stanza contain?<br><br> 2<br> 3<br> 4<br> 6
    7·2 answers
  • A wire is formed into a circle having a diameter of 10.0cm and is placed in a uniform magnetic field of 3.00mT . The wire carrie
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!