Question

Question 1 12 pts A 2 kg rock is pushed off of a cliff that is a height of 36 m above the ground. a) What is the gravitationa
0 0
Add a comment Improve this question Transcribed image text
Answer #1

omavitational potential energy of rock at top of cliff mgh U = 2kgx9.8 m/sx36m U = U = 705.6 I (D From conservation of energy

Add a comment
Know the answer?
Add Answer to:
Question 1 12 pts A 2 kg rock is pushed off of a cliff that is...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 12. A boy kicks a rock off a cliff with a speed of 15.6 m/s at...

    12. A boy kicks a rock off a cliff with a speed of 15.6 m/s at an angle of 52.3° above the horizontal. The rock hits the ground 5.82 s after it was kicked. (12b) What is the speed of the rock right before it hits the ground? (12c) What is the maximum height of the rock in the air, measured from the top of the cliff? Please answer both b) and c).

  • 1. (Spts) A 1-kg rock drops from a vertical cliff hat is 4 m tll anderns...

    1. (Spts) A 1-kg rock drops from a vertical cliff hat is 4 m tll anderns nogi air resistance as it falls. At what speed will its gravitational potential energy (relative to the base of the cliff) be equal to its kinetic energy?

  • A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32...

    A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 33 m/s . Part A Assuming that air resistance can be ignored, find the initial speed of the rock.(Express your answer using two significant figures.) Part B Find the greatest height of the rock as measured from the base of the cliff. (Express your answer...

  • Zero Launch Angle - Car Drives Off a Cliff A car drives straight off the edge...

    Zero Launch Angle - Car Drives Off a Cliff A car drives straight off the edge of a cliff that is h =40 m high. The police at the scene of the accident note that the point of impact is d =86 m from the base of the cliff. Here the initial speed v0 is unknown. Ignore air resistance. The magnitude of the gravitational acceleration is 9.8 m/s2. Choose the RIGHT as positive x-direction. Choose UPWARD as positive y-direction. A....

  • Zero Launch Angle - Car Drives Off a Cliff A car drives straight off the edge...

    Zero Launch Angle - Car Drives Off a Cliff A car drives straight off the edge of a cliff that is h =40 m high. The police at the scene of the accident note that the point of impact is d =86 m from the base of the cliff. Here the initial speed v0 is unknown. Ignore air resistance. The magnitude of the gravitational acceleration is 9.8 m/s2. Choose the RIGHT as positive x-direction. Choose UPWARD as positive y-direction. E....

  • A 2 kg rock is fired at an angle of 60 degree above the horizontal with...

    A 2 kg rock is fired at an angle of 60 degree above the horizontal with an initial speed 20 m/s by someone standing on the edge of a cliff 40 m above level ground. The initial position of the rock is taken to be y = 0. Air resistance is not neglected in this situation! (a) The initial mechanical energy of the rock is? (b) The work being done on the rock by the force of gravity after being...

  • Show your all steps for full credit Answer all questions: 1. An object of mass 1kg...

    Show your all steps for full credit Answer all questions: 1. An object of mass 1kg is at rest at B at a height of 10m above the ground. 6m Ground: h-0m The object is dropped from B and it touches the ground at A. Using energy conservation principle, neglecting the air resistance or friction forces, (Take g as 9.8 m/s) Calculate a) the potential energy at B b) the kinetic energy at B. c) the mechanical energy at B...

  • 1) A daring 51 kg swimmer dives off a cliff with a running horizontal leap. A)What...

    1) A daring 51 kg swimmer dives off a cliff with a running horizontal leap. A)What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is L = 2.40 m wide and h = 9.40 m below the top of the cliff? 2)A physics book slides off a horizontal tabletop with a speed of 3.40 m/s. It strikes the floor in 0.400 s. Ignore...

  • Question 3 1 pts A rock is thrown upward from the edge of a cliff that...

    Question 3 1 pts A rock is thrown upward from the edge of a cliff that is 20 m high. The object rises 15 m and then falls to the ground. If the positive direction of the x is up, what is the rock's displacement? O 20 m 0-15 m -20 m O 55 m Question 4 1 pts A 4.4-kg mass is falling starting from rest at a height of 22 m. How much time does it take for...

  • I need help with problem 39 parts b,c,d Unit 7. Work and Energy In Class Packet...

    I need help with problem 39 parts b,c,d Unit 7. Work and Energy In Class Packet Name: 36. A 2.45 kg rock is dropped from the top of a 15.5 m vertical cliff a. What is the potential energy of the rock relative to the base of the cliff before it is dropped? b. What is the kinetic energy of the rock just before it hits the ground below? c. What is the velocity of the rock at a point...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT