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
finlep [7]
3 years ago
7

As you brake your bicycle, your velocity changes from 20 m/s east to 10 m/s east in 5 seconds. What’s your acceleration?

Physics
1 answer:
charle [14.2K]3 years ago
8 0

Hello!

\large\boxed{-2m/s^{2} }

Find the acceleration using the formula a =  (vf - vi) / t where:

vf = final velocity

vi = initial velocity

t = time

Plug in the points above:

vf = +10 m/s

vi = +20 m/s

t = 5 sec

(10 - 20) / 5 = -10 / 5 = -2 m/s²

You might be interested in
Kayla and her friends are setting up chairs for a school play each row will contain the same number of chairs Kayla knows that t
LUCKY_DIMON [66]

Answer:

96=8*c

Explanation:

4 0
2 years ago
A 2.0-kg laptop sits on the horizontal surface of the seat of a car moving at 8.0 m/s. The driver starts slowing down to stop. F
ivanzaharov [21]

Answer: 32.65\ m

Explanation:

Given

mass of laptop m=2 kg

The velocity of car u=8 m/s

The coefficient of static friction is \mu_s=0.4

The coefficient of kinetic friction is \mu_k=0.2

As the car is moving, so the coefficient of kinetic friction comes into play

deceleration offered by friction \mu_kg=0.2\times 9.8\ m/s^2

Using the equation of motion v^2-u^2=2as\\

insert the values

0^2-8^2=2(-0.2\times 9.8)s\\\\s=\dfrac{64}{1.96}\\\\s=32.65\ m

4 0
3 years ago
Science help please!
OLga [1]

Answer:

104 N

Explanation:

m = 1300 kg

a = 0.08m/s^2

F = 1300*0.08

F = 104 N

Newtons is the unit of force.

3 0
2 years ago
Why is the earth sphered but we cant fall off
anygoal [31]
Because of Gravity, Basically a force so strong it constantly pulls us to the earth with 1 G (Maybe 100 pounds of force constantly pulling us to the earth)
3 0
3 years ago
NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
jasenka [17]

Answer:

She pulled the scarf from her neck and wiped her face.

4 0
3 years ago
Other questions:
  • You jump off a platform 134 m above the Neuse River. After you have free-fallen for the first 40 m, the bungee cord attached to
    10·2 answers
  • Earthquakes often occur along _____ as a result of the build up of stress
    7·2 answers
  • Which of the following is an explanation of how the natural world works, based on experimentation?
    13·2 answers
  • When the net force of opposite forces is zero, the forces are
    5·2 answers
  • What is the state of matter with definite volume?
    6·2 answers
  • Would anyone pls help me on these questions<br><br><br><br> Thanks
    7·2 answers
  • Which statement correctly describes earths magnetic field? <br> 20 point question!!!!
    12·1 answer
  • What is radiation? What are the different types? ​
    15·2 answers
  • An object is launched at a velocity of 20 m/s in a direction making an angle of 25° upward with the horizontal.
    8·1 answer
  • what are the four things that affect the resistance of a wire? A. length, diameter, material, and temperature B. weight, diamete
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!