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
True or false all waves need a medium in order to travel
Roman55 [17]
No light does not need medium to travel.Its an electromagnetic(EM) wave.All EM waves travel independent of medium. In contrast mechanical waves need a medium,sound waves,shock waves are mechanical and they need medium to transfer energy or travel.
3 0
3 years ago
Another name for a pivot point is the:
Makovka662 [10]

Answer:

I think it's c .... fulcrum

7 0
3 years ago
A rectangular gasoline tank can hold 50.0 kg of gasoline when full. What is the depth of the tank if it is 0.500-m wide by 0.900
sweet-ann [11.9K]

Answer:

0.16 m

Explanation:

A rectangular gasoline tank can hold 50.0 kg of gasoline when full, and the density of gasoline is 6.8 × 10² kg/m³. We can find the volume occupied by the gasoline (volume of the tank).

50.0 kg × (1 m³/6.8 × 10² kg) = 0.074 m³

The volume of the rectangular tank is:

volume = width × length × depth

depth = volume / width × length

depth = 0.074 m³ / 0.500 m × 0.900 m

depth = 0.16 m

3 0
3 years ago
A ball thrown in to the air starts out with an initial upward velocity but eventually slows and stops before falling back to the
Mashutka [201]

Answer:

b) The downward force of gravity

Explanation:

The gravity force has the biggest influence on the deceleration of the ball because no matter how much force you applied on the ball, it will eventually go down again, according to newton's second law:

\sum F=m.a

right after you throw the ball, only the force exerted by the gravity will affect the ball (neglecting air resistance):

m.g=m.a\\a=g

so the object will eventually be going down again.

8 0
3 years ago
The picture shows a device used to produce
lesya [120]
It would be wind energy
6 0
3 years ago
Other questions:
  • PLEASE HELP WILL MARK BRANLIEST
    10·2 answers
  • A force of 49N causes a box to move with an acceleration of 7m/s2. Find the mass of the object
    9·1 answer
  • A device that uses electricity and magnetism to create motion is called a _________motor,magnet,generator . In a reverse process
    6·2 answers
  • it is observed that when a mercury in a glass thermometer is put in a flame the column of murcury first descends and then rises
    5·2 answers
  • A 70-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Neglect air resistan
    5·1 answer
  • Select the statement that correctly describes how light travels?
    11·1 answer
  • A wire of length L and cross-sectional area A has resistance R.
    8·2 answers
  • Which measurement is used to determine if an object has balanced forces
    13·1 answer
  • What 3 things use electromagnetic energy in nature?​
    12·1 answer
  • The region of the globe directly beneath the Sun is warmer because it ____. A. sees more intense wavelengths reaching the surfac
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!