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
Alchen [17]
4 years ago
10

If a ball is given an initial speed of 15 m/s on a horizontal, frictionless surface, how fast will the ball be rolling in 5 seco

nds?
Physics
1 answer:
iris [78.8K]4 years ago
7 0
The surface is frictionless, so there is no frictional force acting on the ball. There are no other forces acting on the ball in the horizontal direction, so it's a uniform motion with constant speed. Therefore, the velocity of the ball will remain the same for the entire duration of the motion, and so after 5 seconds the velocity is still 15 m/s.
You might be interested in
HELP PLEASE ASAP !!!!Question 5 of 15
lesantik [10]
I think the answer is C
6 0
3 years ago
Read 2 more answers
How much does a 200 kg car weigh?
adoni [48]
These weights are minus the transmission which can push the car engine weight to around 600 pounds. While most formula ones cars are extremely fast the engines used are lightweight and weigh 100 kg or 210 pounds.
5 0
3 years ago
Suppose a thin conducting wire connects two conducting spheres. A negatively charged rod is brought near one of the spheres, the
dangina [55]

Answer:

a. The spheres will attract each other.

Explanation:

When two conducting spheres are connected by a conducting wire and a negatively charged rod is brought near it then this will induce opposite (positive) charge at the nearest point on the sphere and by the conservation of charges there will also be equal amount of negative charge on the farthest end of this conducting system this is called induced polarization.

  • When the conducting wire which joins them is cut while the charged rod is still in proximity to of one of the metallic sphere then there will be physical separation of the two equal and unlike charges on the spheres which will not get any path to flow back and neutralize.
  • Hence the two spheres will experience some amount of electrostatic force between them.
4 0
3 years ago
After a model rocket reached its maximum height, it then took 5.0 seconds to return to the launch site. what is the approximate
kifflom [539]
Air resistance is ignored.
g = 9.8 m/s².
At maximum height, the vertical velocity is zero.

Let h =  the maximum height reached.
Let u =  the vertical launch velocity.

Because ot takes 5.0 seconds to reach maximum height, therefore
(u m/s) - (9.8 m/s²)*(5 s) = 0 
u = 49 m/s

The maximum height reached is
h = (49 m/s)*(5 s) - (1/2)*(9.8 m/s²)*(5 s)²
   = 122.5 m

Answer: 122.5 m
3 0
3 years ago
A 12-inch object is placed 30 inches in front of a plane mirror. A ray of light from the object strikes the mirror at a 45-degre
gtnhenbr [62]

I believe that it is C.24 inches

3 0
3 years ago
Read 2 more answers
Other questions:
  • How does a blue object look under all colors of light
    11·1 answer
  • An archer fires an arrow, which produces a muffled "thwok" as it hits a target. If the archer hears the "thwok" exactly 1 s afte
    10·1 answer
  • what is the numerical value in meters per second squared of the acceleration of an object experiencing true free fall
    6·1 answer
  • Elements have the same number of __as you move from left to right
    11·1 answer
  • Witch unit is used to measure mass in the metric system
    8·2 answers
  • Does visible have more energy than infrared radiation?
    15·1 answer
  • What is the weight of an object on the earth with a mass of 70 kg. <br> (g= 10 m/s2)
    14·1 answer
  • PLEASE HELP MEE <br> Read the question below and pick the correct answer.
    6·2 answers
  • Jonathan and Cody’s older brother Josh, who is pictured in the Figure below, is standing at the top of a half-pipe at Newton’s S
    6·1 answer
  • Two blocks are on a horizontal frictionless surface. Block a is moving with an initial velocity
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!