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
Sliva [168]
4 years ago
13

A ball is thrown horizontally from a high cliff with a velocity of 5 m/s. Ignoring the slowing of the ball due to air resistance

(and assuming the ball is still falling), what will be the horizontal velocity of the ball 3 seconds later? A. 0 m/s B. 5 m/s C. 9.8 m/s D. 15 m/s
Physics
2 answers:
Aleksandr-060686 [28]4 years ago
7 0
If there's no air resistance, then there are no horizontal forces on the ball.
With no horizontal force, there's no horizontal acceleration, so the horizontal speed never changes.  From the time it's tossed until it hits the ground, its horizontal speed is the same 5 m/s. (B)
viktelen [127]4 years ago
5 0
Hello 
my dude 
how are u 

so the answer to this is going to be 

B

hope this helps 

have a good day
You might be interested in
How do you calculate voltage
IRINA_888 [86]
Voltage=Energy/Charge, V=E/Q V in volts V, E in joules J, Q in coulombs C. or Voltage= Current×Resistance, V=IR V in volts V, I in amperes A and R in ohms Ω
3 0
4 years ago
when an apple falls towards the earth,the earth moves up to meet the apple.is this true ?if yes,why is the earth's motion not no
stira [4]

Answer:

Yes

Explanation:

Newton's third law

For every action, there is an equal and opposite reaction.

SO if the apple is falling 9.8 m/s2 then the same force is pushing against it.

Hope this helps

6 0
3 years ago
The magnitude of the frictional force along the plane is most nearly​
Svetach [21]

Answer:

F = N*μ or F =m*g*μ

Explanation:

The friction force is defined as the product of the normal force by the corresponding friction factor.

When a body is in equilibrium over a horizontal plane its normal force value shall be equal to:

N = m*g\\where:\\m=mass [kg]\\g=gravity [m/s^2]\\N= normal force [N]

if we simplify this formula more for a balanced body on a horizontal plane, we will have.

F=m*g*u

3 0
3 years ago
Which of the following BEST describes an object velocity during free fall?
Viefleur [7K]
Objects can only go so fast and that speed is called terminal velocity. so the answer is A
3 0
3 years ago
An aircraft engine takes in 8950 J of heat and discards 6150 J each cycle. Part A)
Alborosie

Answer:

(a) 2800 J

(b) 31.28 %

Explanation:

Heat intake, Q1 = 8950 J

Heat discard, Q2 = 6150 J

(a) Work = intake heat energy - discarded heat energy

W = Q1 - Q2 = 8950 - 6150 = 2800 J

(b) Efficiency = 1 - Q2 / Q1

Efficiency = 1 - (6150 / 8950) = 0.3128 = 31.28%

4 0
4 years ago
Other questions:
  • An LR circuit contains an ideal 60-V battery, a 42-H inductor having no resistance, a 24-ΩΩ resistor, and a switch S, all in ser
    7·1 answer
  • A 200g particle oscillating in SHM travels 66cm between the two extreme points in its motion with an average speed of 110cm/s. F
    9·1 answer
  • If the original pressure is 5 atm and original volume is 100 L, and the new volume is 20 L, what is the new pressure?
    12·1 answer
  • Plz explain your answer
    13·1 answer
  • A cable car is being pulled up a mountain at 7.5 meters per second. Usually, the car takes 120 seconds to move all the way up th
    10·1 answer
  • A plane is traveling at 250 m/s north after being in the air for 1 hour, what is the displacement?
    8·1 answer
  • Working Together
    7·1 answer
  • in the presence of air drag, an object of mass 0.126kg falls from height of 15.2m to 7.9m with the terminal speed v. How much wo
    13·1 answer
  • . A 6 ohm resistor is connected to a 15 volt battery.
    11·1 answer
  • Do electrical appliances like heaters, toasters and heating pads have high or low resistance (remember for constant voltage, p =
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!