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
olchik [2.2K]
3 years ago
9

Suppose a rock is dropped off a cliff with an initial speed of 0m/s. What is the rocks speed after 5 secounds, in m/s, if it enc

ounters no air resistance?
Physics
2 answers:
tamaranim1 [39]3 years ago
5 0

Answer:

50 m/s

Explanation:

u = 0 m/s, t = 5 seconds, v = ? , g = 10 m/s^2

Use first equation of motion

v = u + g t

v = 0 + 10 x 5 = 50 m/s

Tasya [4]3 years ago
3 0

Answer:

The rock's speed after 5 seconds is 98 m/s.

Explanation:

A rock is dropped off a cliff.

It had an initial velocity of 0 m/s. And now it is moving downwards under the influence of gravitational force with the gravitational acceleration of 9.8 m/s².

Speed after 5 seconds = V

We know that acceleration = average speed/time

In our case,

g = ((0+V)/2)/5

9.8*5 = V/2

=> V = 2*9.8*5

V = 98 m/s

You might be interested in
Thanks for answering ​
ElenaW [278]

Answer:

II) Kitchen waste: Meal leftovers, Banna peelings

Garden Waste: Camote leaves, Kangkong leaves, weeds

Factory: Glass bottles, carton pieces

III) A

IV) Home: Bottles of shampoo, leftover food, syringe

office Gloves

Classroom: containers

Laboratory: empty cartridge

5 0
2 years ago
Consider what will happen when a bar magnet is pushed toward the coil. when the coil "feels" the changing magnetic field caused
notka56 [123]
The question just basically explained what happens
4 0
4 years ago
Equation of orbit under central force​
SOVA2 [1]

I found this on arxsiv.org: “The central force motion between two bodies about their center of mass can be reduced to an equivalent one body problem in terms of their reduced mass m and their relative radial distance r. ... The potential V (r) from which this force is derived is also a function of r alone, F = −VV, V ≡ V (r).”

Mark as BRAINLIEST?

8 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
3 years ago
An industry uses natural gas for manufacturing and uses the waste heat to produce electricity. This is an example of which proce
Lana71 [14]

answer is chemical process

5 0
3 years ago
Other questions:
  • How does the suns energy contribute to the carbon cycle
    15·1 answer
  • You have been asked to make a roller coaster more exciting. The owners want the speed at the bottom of the first hill doubled. H
    15·1 answer
  • 13. What's most intriguing about Titan's atmosphere?
    11·1 answer
  • 8. A 40.0kg block of metal is suspended from a scale and is immersed in water. The dimensions of the block are 12.0cm x 10.0cm x
    5·1 answer
  • A long, straight wire is surrounded by a hollow metal cylinder whose axis coincides with that of the wire. The wire has a charge
    13·1 answer
  • A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes 43.0 vibrations in 29.0 s. A given
    10·1 answer
  • An object is placed at 0 on a line. It moves 3 units to the rights then 4 to the left and then 6 units to the rigth.the displace
    11·1 answer
  • If you were to walk with a speed if 2m/s for 2 hours how far would you travel
    12·1 answer
  • Part D
    8·1 answer
  • The nucleus in an iron atom has a radius of about 4.0 10-15 m and contains 26 protons. (a) What is the magnitude of the repulsiv
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!