(13%) Problem 5: A rock takes 2.05 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.2 m/s.50% Part (a) Calculate the height of the cliff in m.h =7 8 9sin()cos()tan()НOMEE 1^A 4 5 61 2 3asin()acos()cotan()atan()sinh()acotan()cosh()tanh()cotanh()ENDRadiansDegreesVO BACKSPACECLEARDELI give up!SubmitFeedbackHintHints: 1 for a 0% deduction. Hints remaining: 0Feedback: 2 for a 0% deduction|-Choose a system of coordinates before attempting any calculation. Keep in No meaningful feedback available for the current submission.mind that the initial velocity and acceleration have opposite signs, and thatthe height of an object can only be positive.50% Part (b) How long would it take to reach the ground if it is thrown straight down with the same speed?

Question
Asked Feb 2, 2020
1 views

Need help with parts a and b im lost on how to do them

(13%) Problem 5: A rock takes 2.05 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.2 m/s.
50% Part (a) Calculate the height of the cliff in m.
h =
7 8 9
sin()
cos()
tan()
НOME
E 1^A 4 5 6
1 2 3
asin()
acos()
cotan()
atan()
sinh()
acotan()
cosh()
tanh()
cotanh()
END
Radians
Degrees
VO BACKSPACE
CLEAR
DEL
I give up!
Submit
Feedback
Hint
Hints: 1 for a 0% deduction. Hints remaining: 0
Feedback: 2 for a 0% deduction
|-Choose a system of coordinates before attempting any calculation. Keep in No meaningful feedback available for the current submission.
mind that the initial velocity and acceleration have opposite signs, and that
the height of an object can only be positive.
50% Part (b) How long would it take to reach the ground if it is thrown straight down with the same speed?
help_outline

Image Transcriptionclose

(13%) Problem 5: A rock takes 2.05 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.2 m/s. 50% Part (a) Calculate the height of the cliff in m. h = 7 8 9 sin() cos() tan() НOME E 1^A 4 5 6 1 2 3 asin() acos() cotan() atan() sinh() acotan() cosh() tanh() cotanh() END Radians Degrees VO BACKSPACE CLEAR DEL I give up! Submit Feedback Hint Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 2 for a 0% deduction |-Choose a system of coordinates before attempting any calculation. Keep in No meaningful feedback available for the current submission. mind that the initial velocity and acceleration have opposite signs, and that the height of an object can only be positive. 50% Part (b) How long would it take to reach the ground if it is thrown straight down with the same speed?

fullscreen
check_circle

Expert Answer

Step 1

Given

Initial velocity u = 8.2 m/s

Duration t = 2.05 s

Step 2

Solution

Part A

When thrown straight up the acceleration and the initial velocity are in opposite direction

Physics homework question answer, step 2, image 1
fullscreen
Step 3

Part B

When thrown straight down, the acceleration is and th...

Physics homework question answer, step 3, image 1
fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Science

Physics

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A piece of rubber tubing with a linear mass density of 0.125kg/m is stretched by a force of 9.00N.  ...

A: Given:Mass density of rubber tubing (m) = 0.125 kg/m.Force applied in rubber tubing (F) = 9.0 NStret...

question_answer

Q: What is the relationship between field and electric force? When do we use one over the other? Why wo...

A: The relationship between the electric field (E) and the electrical force (F) is that both are in pro...

question_answer

Q: Initial temperature hot water 69° C,Final temperature after adding cold water 48° C.Initial temperat...

A: (c) Let cp be the specific heat capacity of water, mc be the mass of the cold water, mh be the mass ...

question_answer

Q: The area of a typical eardrum is about 5.0x10−5 m2. What is the sound power (energy per second) inci...

A: For the threshold hearing level, sound intensity level is,

question_answer

Q: Review | Constants A small block with a mass of 0.160 kg is attached to a cord passing through a hol...

A: Given:Mass of the block = 0.160 kgOriginal Speed = 0.65 m/sOriginal distance = 0.50 mNew distance = ...

question_answer

Q: For a block of mass m to slide without friction up the rise of height h shown, it must have a minimu...

A: Step 1It is given that m is the mass of the block and it has to rise up at a height h without fricti...

question_answer

Q: What is electrostatic shielding?

A: Electrostatic shielding is the phenomenon where a Faraday’s cage is used to block the effects of an ...

question_answer

Q: (a) Calculate the force needed to bring a 950 kg car to rest from a speed of 90.0 km/h in a distance...

A: Given:Mass of the car = 950 kgInitial velocity of the car = 90 km/hFinal velocity of the car = 0Dist...

question_answer

Q: Convert 30 miles per hour to m/s. Show your work in detail.

A: Click to see the answer