« previous next »

Author Question: What do you need to know to be able to determine how far a projectile travels horizontally? (Read 1488 times)

Sandstorm

  • Sr. Member
  • ****
  • Posts: 268
on: Jun 23, 2013
a. The length of time before it lands
b. The horizontal velocity of the projectile
c. the height of the projectile path
d. the acceleration of gravity

Check all that apply


aero

  • Hero Member
  • *****
  • Posts: 512
Reply #1 on: Jun 23, 2013
The answer is B.

Recall that:

v_x = v*cos(x) [horizontal velocity]
d_x = v_x(t) + ½at² [horizontal distance]

I hope this helps!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

curlz

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jun 23, 2013
B is partially correct you must also know C and the ballistic coefficient of the projectile


« previous next »
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

The chemical synapse. Step 1: The impulse travels down the axon. Step 2: Vesicles are stimulated to ... The chemical synapse. Step 1: The impulse travels down the axon. Step 2: Vesicles are stimulated to ...
How to determine an exponential relation from a table of values How to determine an exponential relation from a table of values
How to determine the x- and y- intercepts of a linear equation How to determine the x- and y- intercepts of a linear equation
An old set of christmas tree lights have 30 lights, 20.6~ each in a series alignment. Determine ... An old set of christmas tree lights have 30 lights, 20.6~ each in a series alignment. Determine ...
If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle If P(θ) = (√3 /2, -1/ 2), determine the coordinates of P (θ + 90 °) using the unit circle
Projectile Passing Through Tissue Projectile Passing Through Tissue
Video: EpiPen Animation (Part 1)

For a complete list of videos, visit our video library