Question

P4. (20 pts) Use CONSERVATION OF ENERGY to determine how HIGH a
projectile of mass

m goes if STARTED with VELOCITY v0 at angle q with respect to the
ground. Please give all

your answers below in terms of v0, q, m, and g.

a) (4 pts) What is the KINETIC ENERGY at the start?

b) (4 pts) What is the KINETIC ENERGY at the HIGHEST point of its
flight?

c) (4 pts) What is the GRAVITATIONAL POTENTIAL ENERGY at the
start?

d) (4 pts) What is the GRAVITATION POTENTIAL ENERGY at the HIGHEST
point of

its flight?

e) (4 pts) Using all that, determine how HIGH it goes a in terms of
v0, q, and g.

Answer #1

The horizontal velocity of projectile remains constant throughout the motion. So the initial horizontal velocity will be equal to the horizontal velocity at highest point. We use conservation of energy principle to find the values as shown below

***********************************************************************************************

**This concludes the answers. If there is any mistake or
omission, let me know immediately and I will fix
it....**

Learning Goal:
To understand how to apply the law of conservation of energy to
situations with and without nonconservative forces acting.
The law of conservation of energy states the following:
In an isolated system the total energy remains constant.
If the objects within the system interact through gravitational
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answer all questions
3.13.6
Question 110 pts
A 319 kg motorcycle is parked in a parking garage. If the car has
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car? Report your answer to 1 decimal place. Please do not include
units or the answer will be marked incorrect.
Flag this Question
Question 210 pts
A box sitting on the top of a hill has 252 J of potential energy.
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8 through 10 done please!!
3.13.6
Question 110 pts
A 319 kg motorcycle is parked in a parking garage. If the car has
35,494 J of potential energy, how many meters above ground is the
car? Report your answer to 1 decimal place. Please do not include
units or the answer will be marked incorrect.
Flag this Question
Question 210 pts
A box sitting on the top of a hill has 252 J of potential energy.
If the hill is...

just do questions 5 through 10
3.13.6
Question 110 pts
A 319 kg motorcycle is parked in a parking garage. If the car has
35,494 J of potential energy, how many meters above ground is the
car? Report your answer to 1 decimal place. Please do not include
units or the answer will be marked incorrect.
Flag this Question
Question 210 pts
A box sitting on the top of a hill has 252 J of potential energy.
If the hill...

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