« previous next »

Author Question: How to calculate the velocity of projectile when it hits the ground and its displacement? (Read 834 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?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Sixteen-pin OBD II DLC with terminals identified. Scan tools use the power pin (16) ground pin (4) ... Sixteen-pin OBD II DLC with terminals identified. Scan tools use the power pin (16) ground pin (4) ...
How to calculate monthly payments at varying amortization periods (Question 2) How to calculate monthly payments at varying amortization periods (Question 2)
How to calculate present value using the compound interest formula (Question 2) How to calculate present value using the compound interest formula (Question 2)
A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ... A bulldozer attempts to drag a log weighing 500 N along the rough horizontal ground. The cable ...
If you walk 5.0 m horizontally forward at a constant velocity carrying a 10 N object, the ... If you walk 5.0 m horizontally forward at a constant velocity carrying a 10 N object, the ...
How to calculate the gain and loss gene numbers with low bootstrap of phylogenetic tree? How to calculate the gain and loss gene numbers with low bootstrap of phylogenetic tree?
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library