This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A rock is thrown downward from an unknown height above the ground with an initial speed of 10 m/s. ... (Read 66 times)

formula1

  • Hero Member
  • *****
  • Posts: 666
on: Jul 28, 2018
A rock is thrown downward from an unknown height above the ground with an initial speed of 10 m/s. It strikes the ground 3.0 s later. Determine the initial height of the rock above the ground.
 a. 44 m
  b. 14 m
  c. 74 m
  d. 30 m
  e. 60 m

Question 2

A toy rocket, launched from the ground, rises vertically with an acceleration of 20 m/s2 for 6.0 s until its motor stops. Disregarding any air resistance, what maximum height above the ground will the rocket achieve?
 a. 1.1 km
  b. 0.73 km
  c. 1.9 km
  d. 0.39 km
  e. 1.5 km


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Silverbeard98

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


formula1

  • Hero Member
  • *****
  • Posts: 666
Reply #2 on: Jul 28, 2018
TY


Silverbeard98

  • Sr. Member
  • ****
  • Posts: 355
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Height versus Footsize Height versus Footsize
Great apes knuckle-walk when traveling on the ground. Great apes knuckle-walk when traveling on the ground.
The Dome of the Rock, Jerusalem. The Dome of the Rock, Jerusalem.
Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ... Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ...
The initial phase of carbohydrate catabolism: glycolysis The initial phase of carbohydrate catabolism: glycolysis
A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ... A 1000-kg car is slowly picking up speed as it goes around a horizontal unbanked curve whose ...
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library