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
Masja [62]
3 years ago
5

A boat moves initially at 10 m/s, then accelerates at 2 m/s^2 for 10 s. What is the velocity of the boat after 10 s?

Physics
1 answer:
bija089 [108]3 years ago
6 0

Answer:

<h3>30m/s</h3>

Explanation:

acceleration is the change in velocity of a body with respect to time

a = v-u/t

v is the final velocity

u is the initial velocity = 10m/s

t is the time taken = 10s

a is the acceleration = 2m/s²

substitute the values into the formula

2 = v-10/10

cross multiply

20 = v-10

v = 20+10

v = 30m/s

Hence the velocity of the body after 10s is 30m/s

You might be interested in
Assume that the polymer material has a constant refractive index of 1.5. For light of 600nm wavelength at normal incidence, what
yaroslaw [1]

Answer:

Minimum thickness will be 100 nm

Explanation:

We have given refractive index is n = 1.5

Wavelength of the light incidence \lambda= 600 nm

We have to find the smallest thickness of the film so that there will be minimum light reflect

For minimum thickness of non reflecting film

t=\frac{\lambda }{4n} , here t is thickness, \lambda is wavelength and n is refractive index

Putting all values t=\frac{600}{4\times 1.5}=100nm

So minimum thickness will be 100 nm

8 0
3 years ago
A cheetah can accelerate from rest at the rate of 4m /s
lesya [120]
Acceleration of cheetah (a) = 4m/s²
time = 10s
initial velocity(u) = 0
final velocity = v
distance travelled = s

v = u +at = 0 + 10×4 = 40m/s
s = (v²-u²)/2a = 40²/(2×4) = 1600/8 = 200m
   
6 0
3 years ago
Activity 1. Part A. Lat There Be Light
Pani-rosa [81]
I thinks it’s 2...........
6 0
3 years ago
Consider the hypothesis below and answer the question that follows. Adding salt to water increases the water’s boiling point. If
irakobra [83]
The hypothesis because its very hard to make and it confounds me
8 0
3 years ago
Read 2 more answers
What do the arrows in food chains represent
OLga [1]
To represent in order how the animals

6 0
3 years ago
Read 2 more answers
Other questions:
  • Why is it important we uncover and study fossils?
    15·2 answers
  • -<br> Speed is a scalar, a quantity that is<br> described by<br> alone.
    8·1 answer
  • What happens to these physical properties as the strength of intermolecular forces increases?
    10·1 answer
  • If you dropped a ball from a height of 10 m and measured its distance to the ground every 0.1 s, what would the graph of positio
    8·1 answer
  • A sequence of star colors from hottest to coolest is
    14·2 answers
  • The earth has a net electric charge that causes a field at points near its surface equal to 150 N/C and directed in toward the c
    13·1 answer
  • What . Slides are placed upside down in a slide projector to correct for the _______ image produced. A. magnified B. inverted C.
    9·2 answers
  • For what position of the object will a spherical concave mirror project on the screen an image smaller than the object? a. betwe
    8·1 answer
  • What equations would you use to find force?
    6·1 answer
  • Based on their locations on the periodic table, which two elements would you
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!