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
goldenfox [79]
3 years ago
6

Kecepatan sebuah benda dinyatakan dengan persamaan vx=8t+2 vy=12+2t, jika posisi awal pastikel (2,5), maka posisi benda pada saa

t t=4s adalah?
Physics
1 answer:
Vlad1618 [11]3 years ago
8 0
X = 2
y = 5

persamaan 1 : vx = 8t + 2 , x = 2 dan t = 0 karena posisi awal
                      2v = 8(0) + 2
                      2v = 2
                       v1 = 1

persamaan 2 : vy = 12 + 2t , y = 5 dan t = 0 karena posisi awal
                     5v = 12 + 2(0)
                     5v = 12
                     v2 = 2,4
masukin pada persamaan t = 4 dengan menggunakan v1 (v pada x) dan v2 (v pada y)
vx = 8t + 2 , t = 4 dan v = 1
1x = 8(4) + 2
x = 32 + 2
x = 34

vy = 12 + 2t , t = 4 dan v = 2,4
2,4y = 12 + 2(4)
2,4y = 20
y = 8,33

maka (x,y) = (34 ; 8,33) pada t = 4

You might be interested in
When an object is placed 30.0 cm in front of a concave mirror, a real image is formed 60.0 cm
Marrrta [24]

Answer:

1 / f = 1 / o + 1 / i = (i + o) / o * 1

f = o * i / (o + i) = 60 * 30 / (60 + 30) = 1800 / 90 = 20 cm

Both the object and image are in positive space for a mirror

3 0
2 years ago
What is the current through a wire if 240 coulombs of charge pass through the wire in 2.0 minutes?
xenn [34]
Current = charge/time = 240/2x120 =1A.
Current flowing is 1 ampere. 
4 0
3 years ago
Read 2 more answers
The number ocean waves that pass a buoy in one second is _ of the wave
mr_godi [17]
The number of ocean waves that pass a buoy in one second is the frequency of the <span>wave. The crest of a transverse wave is its highest point. </span>
7 0
3 years ago
Read 2 more answers
All organisms in Kingdom Animalia are multicellular, meaning their bodies are composed of more than one cell. Which other charac
k0ka [10]
Well,

For the first one, the answer would be C, because all organisms in Kingdom Animalia must eat in order to survive.

For the second one, all of the options are in Kingdom Animalia, but worms (A) and clams (C) are invertebrates.  So that leaves options B and D.
4 0
3 years ago
Read 2 more answers
A 100-kg running back runs at 5 m/s into a stationary linebacker. It takes 0.5 s for the running back to be completely stopped.
Elza [17]

Answer:

1000 N

Explanation:

First, we need to find the deceleration of the running back, which is given by:

a=\frac{v-u}{t}

where

v = 0 is his final velocity

u = 5 m/s is his initial velocity

t = 0.5 s is the time taken

Substituting, we have

a=\frac{0-5 m/s}{0.5 s}=-10 m/s^2

And now we can calculate the force exerted on the running back, by using Newton's second law:

F=ma=(100 kg)(-10 m/s^2)=-1000 N

so, the magnitude of the force is 1000 N.

6 0
3 years ago
Read 2 more answers
Other questions:
  • In the context of the loop and junction rules for electrical circuits, a junction is: Group of answer choices where a wire is be
    13·2 answers
  • Suppose you walk 12.5 m in a direction exactly 19° south of west then you walk 19.5 m in a direction exactly 39° west of north.
    9·1 answer
  • Tubelike structure through which lava travels through to reach the surface
    10·1 answer
  • Fuel is combusted in the _____ stroke of a four-stroke engine.
    12·1 answer
  • Which type of foot PPE must you wear if electrical shock is ever a possibility with your job?
    7·1 answer
  • A white billiard ball with mass mw = 1.43 kg is moving directly to the right with a speed of v = 3.39 m/s and collides elastical
    7·1 answer
  • What quantity measures the amount of space an object occupies?
    7·1 answer
  • Nutrition is a common topic in the media, whether it’s a new diet plan or a new “superfood” on the market to benefit our health.
    14·2 answers
  • A car weighing 19600N is moving with a speed of 30 m/sec on a level road. If it is brought to rest in a distance of 100 m. Find
    10·1 answer
  • 5. George walks to a friend's house. He walks 750 meters North, then realizes he walked too far.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!