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
GenaCL600 [577]
3 years ago
7

An object is initially moving at an unknown velocity. It accelerates at a rate of 2.0 m/s2 to a new velocity of 45 m/s in 10s. W

hat was the initial velocity?
Physics
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

Initial velocity=25m/s

Explanation:

acceleration(a)=2m/s^2

Final velocity(v)=45m/s

Time(t)=10seconds

Initial velocity(u)=?

V=u+axt

45=u+2x10

45=u+20

u=45-20

u=25m/s

You might be interested in
the Space Program has benefitted people in everyday life. Describe two ways in which people can benefit
ycow [4]
So we can know what is in space maybe weird or interesting stuff 

8 0
3 years ago
Use the graph below to answer the following question: if average acceleration is calculated using the equation, “ change in velo
sergiy2304 [10]

Answer:

a=9\ cm/s^2

Explanation:

<u>Average Acceleration </u>

Acceleration is a physical magnitude defined as the change of velocity over time. When we have experimental data, we can compute it by calculating the slope of the line in velocity vs time graph.

Note: <em>We cannot see if the time axis is numbered in increments of 1 second, and we'll assume that. </em>

When t_2=4\ sec, the graph shows a value of v_2=36\ cm/s

When t_1=0\ sec, the object is at rest, v_1=0

We compute the average acceleration as

\displaystyle a=\frac{v_2-v_1}{t_2-t_1}

\displaystyle a=\frac{36\ cm/s-0\ cm/s}{4\ sec-0\ sec}

\displaystyle a=\frac{36\ cm/s}{4\ s}

\boxed{a=9\ cm/s^2}

6 0
2 years ago
Why is figure 5 an unhelpful visualization tool for this data set? <br><br> Please help!
Paraphin [41]

Explanation:

Because the temperature and the radiation are not correlated, they're not represented as functions of each other, they're represented as independent variables thus using graph 5 you cannot figure out how one affect another

8 0
2 years ago
raising the temperature of a gas will increase its pressure If which of the following happens the volume is increased but the nu
Nadusha1986 [10]
D, as the others will result in the likelihood of the particles colliding decreasing

Hope it helps))

3 0
2 years ago
11. A 3.8 kg object is lifted 12 meters. Approximately how much work is performed during the lifting?
Marianna [84]
I found the answer for you if u need any help ask anytime!

3 0
3 years ago
Other questions:
  • A Ferris wheel with a radius of 5 m is rotating at a rate of one revolution every 2 minutes. How fast is a rider rising when the
    8·1 answer
  • A particle moves along a straight line and its position at time t is given by
    6·1 answer
  • Two workers push on a wooden crate. One worker push with a force of 543 N and the other with a force of 333 N. The mass of the w
    14·1 answer
  • Do all planetary systems look the same as our own?
    7·1 answer
  • Choose the correct option
    6·1 answer
  • Help help help help help help help help help
    8·2 answers
  • If 3 cups are sitting outside on a hot summer day, which cup will gain the most heat? Cup A starts a little above freezing, Cup
    10·1 answer
  • A woman with a mass of 60 kg climbs a set of stairs that are 3m high How much gravitational potential energy does she gain a res
    14·2 answers
  • .) WHat is the force that causes the pendulum to fall?<br>​
    7·1 answer
  • A weather balloon has a volume of 35 L at sea level (1.0 atm). After the balloon is released it rises to where the air pressure
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!