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
pantera1 [17]
2 years ago
9

why does a car slide when it rolls over an icy patch on a road? A. cars have more momentum on icy surfaces. B. there is less fri

ction between the cars tires and the ice than between the car tires and the road. C. there is more friction between the cars tires and the ice than between the car tires and the road. D. cars have less momentum on icy surfaces.
Physics
2 answers:
Vaselesa [24]2 years ago
6 0
The answer is B
because if you compare a regular road and ice... ice is smoother and therefore has less friction 
sweet-ann [11.9K]2 years ago
6 0
B) because a road is usually covered in rocks which increases the friction, but since its now covered in ice which is usually a smooth surface is has less friction leading to the car sliding. Also if the top of the ice has melted it may hav left behind water and hitch is a lubricant and reduces friction
You might be interested in
Does an increase in velocity necessarily mean an increase in acceleration?
Vinil7 [7]
We know, acceleration = final velocity - initial velocity / time
Here, if velocity is increasing, then, 
Final velocity > initial velocity, in that case, acceleration is also increasing, as it is directly proportional to velocity

In short, Your Answer would be "Yes"

Hope this helps!
3 0
2 years ago
Read 2 more answers
A steel ball and a wooden ball of the same diameter are released together from the top of a tower. In the absence of air resista
ella [17]

Answer:

False

Explanation:

The steel ball and the wooden ball do not have the same force acting on them because their masses are different. But, they have the same acceleration which is the acceleration due to gravity g = 9.8 m/s².

Using the equation of motion under freefall, s = ut +1/2gt². Since u = 0,

s = 1/2gt² ⇒ t = √(2s/g)

Since. s = height is the same for both objects, they land at the same time neglecting air resistance.

8 0
3 years ago
Two balls, each with a mass of 0.890 kg, exert a gravitational force of 8.06 × 10−11 n on each other. how far apart are the ball
Bond [772]
This problem involves Newton's universal law of gravitation and the equation to follow would be.

F = GM₁M₂/r²  

Given: M₁ = 0.890 Kg;  M₂ = 0.890 Kg;  F = 8.06 x 10⁻¹¹ N; G = 6.673 X 10⁻¹¹ N m²/Kg²

Solving for distance r = ?

r = √GM₁M₂/F

r = √(6.673 x 10⁻¹¹ N m₂/Kg²)(0.890 Kg)(0.890 Kg)/ 8.06 x 10⁻¹¹ N

r = 0.81 m 
6 0
3 years ago
Calculate the acceleration of a car if it's velocity increases from 15 m/s to 75m/s in 5 seconds. ​
Andreas93 [3]
  • initial velocity=u=15m/s
  • Final velocity=v=75m/s
  • Time=t=5s

\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}

\\ \sf\longmapsto Acceleration=\dfrac{75-15}{5}

\\ \sf\longmapsto Acceleration=\dfrac{60}{5}

\\ \sf\longmapsto Acceleration=12m/s^2

7 0
2 years ago
A rocket powered sled accelerates a jet pilot in training straight forward from rest to 270 km/h in 12.1 seconds. Find:
Ilia_Sergeevich [38]

Answer:

  1. 6.198 m/s²
  2. 4.48 s
  3. 453.77 m

Explanation:

5 0
3 years ago
Other questions:
  • A plane traveling north at 100.0 km/h through the air gets caught in a 40.0 km/h crosswind blowing west. This turbulence caused
    7·1 answer
  • A motor does 8000j of work in 20 seconds. What is the power of the motor
    12·1 answer
  • What is the climate of northern Alaska?
    6·2 answers
  • A 12 v automobile battery is connected to an electric starter motor. the current through the motor is 206
    11·1 answer
  • What’s gravitational pull of the earth
    6·2 answers
  • Explain why an object’s weight is dependent upon where in the universe it is located.
    15·1 answer
  • Given a 45 45 90 prism with index of 1.5, immersed in air. The hypotenuse acts as the reflecting face by TIR. A ray of light ent
    12·1 answer
  • A student uses 60 Newtons of force to climb 18 meters in 6 seconds. Calculate her Power.
    11·1 answer
  • The negative will be __________ to the positive. Therefore, they are pulling __________ each other, and creating and electrical
    13·1 answer
  • What is the angle of refraction when a ray of light passes frm ethanol to air
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!