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
ss7ja [257]
3 years ago
9

How would you find force of the ping pong ball rolling down the track?

Physics
1 answer:
Alina [70]3 years ago
6 0
<h3>Force of the ping pong ball rolling down the track:</h3><h3 /><h2>Answer</h2><h3>Weight </h3>

               a) weight's vertical component = Normal upward force

               b) weight's horizontal component = Friction force = (mass of ball)(acceleration)

These forces depend upon the track,

1) inclined or horizontal

2) steepness.

<h2>Explanation</h2>

The force of gravity points straight down, but a ball rolling down a ramp doesn't go straight down, it follows the ramp. Therefore, only the component of the weight which points along the direction of the ball's motion can accelerate the ball.

<em>weight's horizontal component = Friction force = (mass of ball)(acceleration)</em>

The other component pushes the ball into the ramp, and the ramp pushes back.

If the ramp is horizontal, then the ball does not accelerate, as gravity pushes the ball into the ramp and not along the surface of the ramp.

You might be interested in
An astronaut drops a rock from the top of a crater on the moon. When the rock is halfway down to the bottom of the crater, its s
Alexxx [7]

Answer: vf1/vf2= 1/ sqrt(2)

Explanation :on the moon no drag force so we have only the  force of gravity. aceleration is g(moon)= 1.62m/s2.the rest is basic kinematics

if the rock travels H to the bottom we can calculate velocity:

vo=0m/s (drops the rock)  , yo=0

vf*vf= vo*vo+2g(y-yo)

when the rock is halfway  y = H/2 so:

vf1*vf1=2*g*H/2 so vf1 = sqrt(gH)

when the rock reach the bottom y=H so:

vf2*vf2=2*g*H so vf2 = sqrt(2gH)

so vf1/vf2= 1/ sqrt(2)

good luck from colombia

8 0
3 years ago
Read 2 more answers
A car traveling with constant speed travels 150 km in 7200s what is the speed of the car
Oksana_A [137]
Velocity is distance/time 

so 150/7200=.0208km/s 

unless you have to convert it to miles or something else. but use the formula!
5 0
3 years ago
An electron that has an instantaneous velocity of ???? = 2.0 × 106 m ???? ???? + 3.0 × 106 m ???? ???? is moving through the uni
Setler79 [48]

Explanation:

It is given that,

Velocity of the electron, v=(2\times 10^6i+3\times 10^6j)\ m/s

Magnetic field, B=(0.030i-0.15j)\ T

Charge of electron, q_e=-1.6\times 10^{-19}\ C

(a) Let F_e is the force on the electron due to the magnetic field. The magnetic force acting on it is given by :

F_e=q_e(v\times B)

F_e=1.6\times 10^{-19}\times [(2\times 10^6i+3\times 10^6j)\times (0.030i-0.15j)]

F_e=-1.6\times 10^{-19}\times (-390000)(k)

F_e=6.24\times 10^{-14}k\ N

(b) The charge of electron, q_p=1.6\times 10^{-19}\ C

The force acting on the proton is same as force on electron but in opposite direction i.e (-k). Hence, this is the required solution.

8 0
3 years ago
The direction of the acceleration of an object on a(n) _______________________ path is toward the _______________________ of the
aleksandrvk [35]

Answer:

circular...center

Explanation:

Physics

8 0
3 years ago
The main part of the nuclear power plant is the ____. Where nuclear ____ reactions take place.
emmasim [6.3K]
Turbine an unclean fission
7 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose we replace the mass in the video with one that is four times heavier. How far from the free end must we place the pivot
    14·1 answer
  • Calculate the mag-netic field (magnitude and direc-tion) at a point p due to a current i=12.0 a in the wire shown in fig. p28.68
    10·1 answer
  • To investigate seed growth in different levels of light, Jarrod covers seeds with soil in three different containers. He places
    7·2 answers
  • LOOK AT THE PICTURE!! 3 <br> Please answer properly
    9·2 answers
  • You’re an electrical engineer designing an alternator (the generator that charges a car’s battery). Mechanical engineers specify
    8·1 answer
  • After the switch in is closed on point a, there is current i through resistance r. gives the current for four sets of values of
    9·1 answer
  • He distance between two consecutive crests is 2.5 meters. Which characteristic of the wave does this distance represent? amplitu
    5·2 answers
  • Fruit and write your thought about it​
    6·1 answer
  • A topographic map would best provide information about which area? O state boundaries O interstate highways O routes of minor ro
    9·2 answers
  • Write an essay about the Paralympic and Special Olympic Essay 100 points
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!