Qualification > Sciences
Edexcel PHYSICS Doubts
Igcseboy:
--- Quote from: Austrakast on May 26, 2010, 06:38:07 pm ---
the normal reaction force should always be a normal to the/perpenicular to center of gravity
here r some stuffs on projectiles
http://www.astarmathsandphysics.com/a_level_physics_notes/forces_and_motion/a_level_physics_notes_equations_for_projectiles.html
if u still have problem with free body force diagram
take a look 2 this http://www.astarmathsandphysics.com/a_level_physics_notes/forces_and_motion/a_level_physics_notes_free_body_diagrams.html
--- End quote ---
thanxx
hey so wat do u expect of 2morrows paper is it gonna be easy like chemistry or ????
Darkstar3000:
How are these supposed to be done
A particle is projected from level ground in such a way that its horizontal and vertical components of velocity are 20m/s and 10 m/s respectively. Find
a. the max height of the ball (i can do this)
b. its horizontal distance from the point of projection when it returns to the ground
c. the magnitude and direction of its velocity on landing
....................................
A pencil is accidentally knocked off the edge of a (horizontal) desk top. The height of the desk is 64.8 cm and the pencil hits the floor a horizontal distance of 32.4cm from the edge of the desk. What was the speed of the pencil as it left the desk?
T.Q:
--- Quote from: Darkstar3000 on May 26, 2010, 08:35:48 pm ---How are these supposed to be done
A particle is projected from level ground in such a way that its horizontal and vertical components of velocity are 20m/s and 10 m/s respectively. Find
a. the max height of the ball (i can do this)
b. its horizontal distance from the point of projection when it returns to the ground
c. the magnitude and direction of its velocity on landing
....................................
A pencil is accidentally knocked off the edge of a (horizontal) desk top. The height of the desk is 64.8 cm and the pencil hits the floor a horizontal distance of 32.4cm from the edge of the desk. What was the speed of the pencil as it left the desk?
--- End quote ---
a)
b)
c)
T.Q:
--- Quote from: Darkstar3000 on May 26, 2010, 08:35:48 pm ---
A pencil is accidentally knocked off the edge of a (horizontal) desk top. The height of the desk is 64.8 cm and the pencil hits the floor a horizontal distance of 32.4cm from the edge of the desk. What was the speed of the pencil as it left the desk?
--- End quote ---
Darth Austrakast:
--- Quote from: Igcseboy on May 26, 2010, 06:44:03 pm ---
thanxx
hey so wat do u expect of 2morrows paper is it gonna be easy like chemistry or ????
--- End quote ---
dude 1 thing i can tell u from my experience Physics is never easy :P
but i found jan10 okay so i m afraid this may they might decide to change the pattern
just hoping no freaky questions!
Best of luck !
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version