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
Bond [772]
3 years ago
9

Justin Bieber is thrown horizontally at 10.0 m/s from the top of a cliff 122.5 m high.

Physics
2 answers:
sveticcg [70]3 years ago
7 0

===>  Distance fallen from rest in free fall =

                                         (1/2) (acceleration) (time²)

                               (122.5 m) = (1/2) (9.8 m/s²) (time²)

Divide each side by (4.9 m/s²):   (122.5 m / 4.9 m/s²)  =  time²

                                                           (122.5/4.9) s²  =  time²

Take the square root of each side:    5.0 seconds


===> (Accelerating at 9.8 m/s², he will be dropping at
                               (9.8 m/s²) x (5.0 s) = 49 m/s
when he goes 'splat'.  We'll need this number for the last part.)


===> With no air resistance, the horizontal component of velocity
doesn't change.

Horizontal distance = (10 m/s) x (5.0 s)  =  50 meters .

===>  Impact velocity =  (10 m/s horizontally) + (49 m/s vertically)

                                 = √(10² + 49²)  =  50.01 m/s  arctan(10/49)

                                 =    50.01 m/s   at  11.5° from straight down,
                                                           
away from the base of the cliff.  

ivann1987 [24]3 years ago
4 0

Answer:

===>  Distance fallen from rest in free fall =

                                        (1/2) (acceleration) (time²)

                              (122.5 m) = (1/2) (9.8 m/s²) (time²)

Divide each side by (4.9 m/s²):   (122.5 m / 4.9 m/s²)  =  time²

                                                          (122.5/4.9) s²  =  time²

Take the square root of each side:    5.0 seconds

===> (Accelerating at 9.8 m/s², he will be dropping at

                              (9.8 m/s²) x (5.0 s) = 49 m/s

when he goes 'splat'.  We'll need this number for the last part.)

===> With no air resistance, the horizontal component of velocity

doesn't change.

Horizontal distance = (10 m/s) x (5.0 s)  =  50 meters .

===>  Impact velocity =  (10 m/s horizontally) + (49 m/s vertically)

                                = √(10² + 49²)  =  50.01 m/s  arctan(10/49)

                                =    50.01 m/s   at  11.5° from straight down,

                                                           away from the base of the cliff.  

Explanation:

Just saying i LOVE him

You might be interested in
The term time dilation refers to which effect?
RoseWind [281]
Is the apparent loss of time of a moving clock as observed by a stationary observer. Thats what i think.
6 0
3 years ago
Read 2 more answers
Tara's cell phone plan costs $39.00 a month, which includes 100 text messages. After she uses all of her text messages, it will
vekshin1
I think it is $585.hope it is right
5 0
3 years ago
How can an individual benefit from participating in the recommended amount of physical activity?
Orlov [11]
It will help them stay in better shape resulting in better health, being more physically active, and staying happier as a result.
3 0
3 years ago
Does anyone know these four?! I really need help and fast pls
Mama L [17]

Evidence: Data gathered

Experiment: Looking through a telescope

Observations: Testing what happens

Reasoning: Thinking a problem through

I believe that these should be correct.

Hoping you pass!

3 0
3 years ago
A truck ttaveling with an initial velocity of 60.0m/s comes to a stop in 12.93 secs. What is the accelerationof the truck?
anastassius [24]

When a car travelling at an initial velocity of 10 m/s applies the brakes and bring ... accelerates from rest for a time of 8 seconds with an acceleration of 3.2m/s^2?


3 0
3 years ago
Other questions:
  • In the real world, orbiting objects such as satellites and stations do not need to be constantly accelerating. What is different
    13·1 answer
  • Two resistors connected in series (R1, R2) are connected to two resistors that are connected in parallel (R3,R4). The series-par
    9·1 answer
  • Which type of energy conversion takes place when a lightbulb is turned on?
    8·1 answer
  • A non reactive metal can be identified from other metals because it's surface is?
    13·1 answer
  • The Asian Silver Carp is an invasive species of fish which has infested a number of American rivers. The disturbance of passing
    10·1 answer
  • How many elements are there in total in the periodic table?
    12·2 answers
  • A basketball of mass 0.608 kg is dropped from rest from a height of 1.37 m. It rebounds to a height of 0.626 m.
    14·1 answer
  • Please help me on this physics, i got confused​
    7·1 answer
  • Student 1 lifts a box with a force of 500 N and sets it on a tabletop 1. 2 m high. Student 2 pushes an identical box up a 5 m ra
    15·1 answer
  • Which three statements describe mechanical waves?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!