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
Len [333]
2 years ago
8

In physics, what is the positive and negative sign used for when applied to velocity and acceleration?

Physics
1 answer:
Kobotan [32]2 years ago
6 0

Answer:

Opposite direction

Explanation:

For example: The first object travels in the direction pointing to east, while the other one travels pointing to the west.

The first object will have a positive value while the second one will have a negative, cause it's going to the opposite direction

You might be interested in
A force sets an object in motion when the force is multiplied
pickupchik [31]
A force sets an object in motion when the force is multiplied by the time of its application.
4 0
3 years ago
HELP!!!! PLEASE (and there will be more)
Alexus [3.1K]

Answer:

i wanna say tranverse if not surface

Explanation:

6 0
3 years ago
Read 2 more answers
Paul and Ivan are riding a tandem bike together. They’re moving at a speed of 5 meters/second. Paul and Ivan each have a mass of
Marysya12 [62]
Well they could go down a hill to gain more kinetic energy.
6 0
3 years ago
Read 2 more answers
Angelina jumps off a stool. As she is falling, the Earth’s gravitational force on her is larger in magnitude than the gravitatio
valentinak56 [21]
The answer is True. The amount force exerted by any object is directly proportional to its mass. This means that our planet is exerting more gravitational force to Angelina, and Angelina is also exerting a gravitational force on our planet directly proportional to her mass. Angelina is actually falling towards the center of the earth,and also our planet is also moving towards Angelina, but it seems negligible with respect to Angelina.Our Sun is so massive that it held our planet in its orbit because of its gravitational force.
8 0
3 years ago
Read 2 more answers
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/s, and
Svetlanka [38]

Answer:

a = 1.152s

b = 0.817 m

c = 7.29m/s

Explanation: let the following

From the first equation of linear motion

V = u+at..........1

parameters be represented as :

t = Time taken

v = Final velocity

a = Acceleration due to gravity = 9.8m/s²

u = Initial velocity = 4 m/s

s = Displacement

V = 0

Substitute the values into equation 1

0 = 4-9.8(t)

-4 = -9.8t

t = 4/9.8

t = 0.408s

From : s = ut+1/2at^2.........2

S = 4×0.408+0.5(-9.8)×0.408^2

S= 1.632-4.9(0.166)

S = 1.632-0.815

S = 0.817m

Her highest height above the board is 0.817 m

Total height she would fall is 0.817+1.90 = 2.717 m

From equation 2

s = ut+1/2at^2

2.717 m = 0t+0.5(9.8)t^2

2.717 m = 0+4.9t^2

2.717 m = 4.9t^2

2.717/4.9 = t^2

0.554 =t^2

t =√0.554

t = 0.744s

Hence, her feet were in the air for 0.744+0.408seconds

= 1.152s

Also recall from equation 1

V= u+at

V = 0+9.8(0.744)

V = 7.29m/s

Hence, the velocity when she hits the water is 7.29m/s

Finally,

a = 1.152s

b = 0.817 m

c = 7.29m/s

4 0
2 years ago
Other questions:
  • Rank the six combinations of electric charges on the basis of the electric force acting on q1. Define forces pointing to the rig
    7·1 answer
  • What is the observed frequency of a siren with a frequency of
    10·1 answer
  • What force controls the isostatic adjustment of Earth’s crust?
    10·2 answers
  • 11 kg is a familiar weight for a bag of flour. You are baking cookies for a Save The Rain Forest fund drive. It takes 500 g of f
    6·1 answer
  • When the moving sidewalk at the airport is broken, as it often seems to be, it takes you 44 s to walk from your gate to baggage
    13·1 answer
  • Classify the planets as inner planets of outer planets explain your answer​
    6·1 answer
  • Talking to adults can be intimidating and uncomfortable if you do not yet feel like one. However, learning how to effectivelycom
    10·1 answer
  • The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 5.4 earth years.
    11·1 answer
  • Ayuda porfa es de actividades fisicas
    10·1 answer
  • A scuba diver stays underwater for 30 minutes. How is this possible when the air tank is so small?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!