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
Irina18 [472]
2 years ago
15

B)

Physics
1 answer:
Vlad1618 [11]2 years ago
5 0

Answer:

a) 16m/s b) 192m

Explanation:

v1=32m/s a=-2m/s^2 t=8s v2=? d=??

a) I will use this equation v2= v1 + a*t

v2= 32m/s + -2m/s^2 * 8s

v2= 32m/s + -16m/s

v2= 16m/s

b) v2^2=v1^2 + 2ad

rearranging

v2^2-v1^2=2ad

v2^2-v1^2/2= a d

v2^2-v1^2/2a=d

16m/s^2 - 32m/s^2/ 2 x-2m/s^2 =d

d=192m

You might be interested in
A 60.0 kg girl stands up on a stationary floating raft and decides to go into shore. She dives off the 180 kg floating raft with
lord [1]
Momentum, p = m.v
m of the girl = 60.0 kg
m of the boat = 180 kg
v of the girl = 4.0 m/s

A) Momentum of the girl as she is diving:
p = m.v = 60.0 kg * 4.0 m/s = 24.0 N/s

B) momentum of the raft = - momentum of the girl = -24.0 N/s

C) speed of the raft

p = m.v ; v = p/m = 24.0N/s / 180 kg = -0.13 m/s [i.e. in the opposite direction of the girl's velocity]
6 0
3 years ago
Initially, a particle is moving at 5.25 m/s at an angle of 35.5° above the horizontal. Three seconds later, its velocity is 6.0
ivolga24 [154]

Answer:

 a =( -0.32 i ^ - 2,697 j ^)  m/s²

Explanation:

This problem is an exercise of movement in two dimensions, the best way to solve it is to decompose the terms and work each axis independently.

Break down the speeds in two moments

initial

  v₀ₓ = v₀ cos θ

  v₀ₓ = 5.25 cos 35.5

v₀ₓ = 4.27 m / s

   v_{oy} = v₀ sin θ

 v_{oy}= 5.25 sin35.5

v_{oy} = 3.05 m / s

Final

vₓ = 6.03 cos (-56.7)

vₓ = 3.31 m / s

v_{y} = v₀ sin θ

v_{y} = 6.03 sin (-56.7)

v_{y} = -5.04 m / s

Having the speeds and the time, we can use the definition of average acceleration that is the change of speed in the time order

    a = (v_{f} - v₀) /t

    aₓ = (3.31 -4.27)/3

    aₓ = -0.32 m/s²

    a_{y} = (-5.04-3.05)/3

   a_{y} =  -2.697 m/s²

6 0
3 years ago
It is MOST accurate to say the the body mass index (BMI) provides information about ____________. A. Body composition. B. An ind
cluponka [151]
It is most accurate to say that body mass index (BMI) provides information about an individual's height-weight ratio. The correct answer is B.
8 0
3 years ago
Read 2 more answers
From Smallest to Largest <br> Moon<br> asteroid <br> meteorite <br> meteoroid
Yanka [14]
Meteorite meteoroid asteroid moon give brainlest please
7 0
2 years ago
Read 2 more answers
. Find the weight (weight = mg) of a 17 kg crate of books.
White raven [17]

Answer:

It is 37.4786

5 0
2 years ago
Other questions:
  • How large an expansion gap should be left between steel railroad rails if they may reach a maximum temperature 36.0°C greater th
    15·1 answer
  • Objects that have value in themselves and that are also used as money is the definition for _____.
    10·2 answers
  • Given f(x)= 3x+19, find x if f(x)= 46
    13·1 answer
  • • A cable is suspended over a pulley. A 5.0 kg mass is attached to
    12·1 answer
  • Whats the origin of all stars?<br> a) supernova<br> b) dwarfs<br> c) protostars<br> d) nebulae
    7·2 answers
  • The four tires of an automobile are inflated to a gauge pressure of 2.2 ✕ 105 Pa. Each tire has an area of 0.022 m2 in contact w
    11·1 answer
  • Identify the type of weathering seen in each picture
    15·2 answers
  • A 0.155 kg arrow is shot upward
    11·2 answers
  • I need help please will mark brainliest
    7·1 answer
  • An irregularly shaped rock is placed in 50 mL of water. The new reading in the container is now 74.2 mL. If the mass of the rock
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!