This topic contains a solution. Click here to go to the answer

Author Question: A projectile is launched straight upward at 50 m/s. Neglecting air resistance its speed upon ... (Read 141 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
A projectile is launched straight upward at 50 m/s. Neglecting air resistance its speed upon returning to its starting point is
 
  A) less than 50 m/s.
  B) 50 m/s.
  C) more than 50 m/s.

Question 2

A child throws a ball with an initial speed of 8.0 m/s at an angle of 40 above the horizontal. The ball leaves her hand 1.0 m above the ground.
 
  Neglect air (a) How far from where the child is standing does the ball hit the ground? (b) How long is the ball in flight before it hits the ground? (c) What is the magnitude of the ball's velocity just before it hits the ground?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sylvia

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

Answer: B

Answer to Question 2

(a) 7.5 m (b) 1.2 s (c) 9.1 m/s




tfester

  • Member
  • Posts: 534
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

For a complete list of videos, visit our video library