This preview shows pages 1–2. Sign up to view the full content.
Lesson 4 Homework
1.
A pitcher throws a fast ball with a horizontal velocity of 125 kmh
1
towards the home plate which is 18.5 m away. Neglecting air
resistance, find (i) the time taken by the ball to reach just above the
home plate, (ii) the vertical drop of the ball during this time.
2.
A spring loaded gun placed on a table 1.0 m above the ground level
projects a marble with an initial speed of 4.8 ms
1
. (i) What is the time
taken by the marble to drop to the ground? (ii) How far from the table
will the ball fall?
3.
A ball rolls with a constant velocity of 1.5 ms
1
at an angle of 45
o
relative to the xaxis in the 4
th
quadrant. Taking the ball to be at the
origin at t = 0, what is its position ( x and y coordinates) at t = 1.65 s?
What is the displacement of the ball at this time?
4.
The y component of a velocity that has an angle of 27
o
with the xaxis
has a magnitude of 3.8 ms
1
, (a) What is the magnitude of the
velocity? (b) What is the magnitude of the xcomponent of the
velocity?
5.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 05/01/2011 for the course PHY 2048 taught by Professor George during the Fall '10 term at Edison State College.
 Fall '10
 George
 Physics, Resistance, Work

Click to edit the document details