« previous next »

Author Question: How to calculate the velocity of projectile when it hits the ground and its displacement? (Read 848 times)

Melanie

  • Full Member
  • ***
  • Posts: 204
on: Jun 23, 2013
Knowing:    A projectile is fired from the ground vertically upward with an initial velocity of 29 m/s and arrives at its max altitude in 3 seconds


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Jun 23, 2013
In the absence of air friction, a projectile will always hit the ground at the same speed at which it was launched, providing the two points are the same elevation.

BTW, t = V/g = 29/9.81 = 2.956 sec (OK, so that's 3 sec to 1 sig fig...)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Melanie

  • Full Member
  • ***
  • Posts: 204
Reply #2 on: Jun 24, 2013
Thanks :D


« previous next »
 

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Ground coffee magnified Ground coffee magnified
How to calculate mortgage payments (Question 1 of 2) How to calculate mortgage payments (Question 1 of 2)
Depleted ground water Depleted ground water
Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a Calculate the distance from point R(17,5) to the line ... Round to the nearest tenth of a
Calculate KP for the following reactions at the indicated temperature. Calculate KP for the following reactions at the indicated temperature.
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library