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
Andre45 [30]
2 years ago
10

Sam is walking at 2m/s down the hallway when he realized he will be late to class. He speeds up to 4m/s and makes it to English

class just before the bell. If it took him 4 seconds to speed up what was his acceleration?
Physics
1 answer:
Salsk061 [2.6K]2 years ago
8 0

Answer:

.5 m/s²

Explanation:

a= (vf-vi)/t

a= (4-2)/4

a=2/4

a= .5 m/s²

You might be interested in
A lamp has a power of 120 W and is left on for 24 hours . A television has a power of 350 W and is left on for three hours . com
Paladinen [302]
This is a power problem which requires the rearranging of a formula. The lamps energy used is 5 N, and the TV’s usage is 116.7 N (rounded from 116.6666repeating). Here my work:
7 0
3 years ago
Read 2 more answers
How is a crowbar used to remove the top of a box change the direction of the force
Lemur [1.5K]
The crowbar is placed under a small edge under the top of the box. The crowbar will send the box lid flying from the opposite direction that the crowbar is placed. Please give Brainlest if you understand.
7 0
3 years ago
Compare 2,500 centimeters to 25 decimeters. How do each of these values compare to a meter, and which represents a longer length
Rom4ik [11]
2500 centimeters is 25 meters. 25 decimeters is 2.5 meters. 2500 centimeters is 10 times longer than 25 decimeters.
6 0
3 years ago
If zak's speed is 3.00 m/s when he starts to slide, what distance d will he slide before stopping? express your answer in meters
OverLord2011 [107]
That will depend on the coefficient of friction between the sliding surfaces, and also on Zak's weight. We don't have any of that information.
8 0
3 years ago
An object of mass 3.4 kg is moving in a straight line with kinetic energy 59.177 J. A force is applied in the direction of its m
rusak2 [61]

Answer:

Its momentum is multiplied by a factor of 1.25

Explanation:

First, we <u>calculate the initial velocity of the object</u>:

  • K = 0.5 * m * v₁²
  • 59.177 J = 0.5 * 3.4 kg * v₁²
  • v₁ = 5.9 m/s

With that velocity we can <u>calculate the initial momentum of the object</u>:

  • p₁ = v₁ * m
  • p₁ = 20.06 kg·m/s

Then we <u>calculate the velocity of the object once its kinetic energy has increased</u>:

  • (59.177 J) * 1.57 = 0.5 * 3.4 kg * v₂²
  • v₂ = 7.4 m/s

And <u>calculate the second momentum of the object</u>:

  • p₂ = v₂ * m
  • p₂ = 25.16 kg·m/s

Finally we <u>calculate the factor</u>:

  • p₂/p₁ = 1.25
3 0
2 years ago
Other questions:
  • If object a has more mass than object b does object a contain more matter?
    10·1 answer
  • Bright white shadings on infrared images indicate cloud tops that have relatively ________ temperatures
    10·1 answer
  • Will mark the first answer brainliest. Picture attached, kirchhoffs junction rule!
    15·1 answer
  • The kinetic energies of particles in a sample of matter are increasing. This sample is most likely
    15·1 answer
  • Which equation represents the total energy of a system?
    10·1 answer
  • Determine the centripetal force on a vehicle rounding a circular curve with a radius of 80 m at a constant speed of 90 km/h if t
    12·1 answer
  • Nancy rides her bike with a constant
    15·1 answer
  • The heart working with the blood vessels to pump blood is which body system?
    9·1 answer
  • A robin flies a distance of 45963 cm. How far has it flown in kilometers?
    13·1 answer
  • A father pushes his child on a swing. He pushes with a force of 20 N or a distance of 1 m, with the force always maintained para
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!