Laws of Motion Homework
1. Three forces act on an object. A 5 N force acts due east and a 6 N force acts due north. If the net
force on the object is zero, what is the magnitude of the third force?
a. 7.8 N
b. Correct: Your answer is correct.
2. The net h
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rm one @1090: (C) 40m a); 805cc 03;me
can-amalgam with 5 mfsecz. What is the car's mass?
(A) 53 . (B) 100 kg @00 kg (D) 6000kg (E) :0 ram me " '
6) A 5kg block
@kbmught in contact with E _
are meted such thattheir tempgmtm-e decreases by 100. 1 m ' 513. .
l l (C) 50th materials have lost the same am _
=1 maa; is a better coolant? 5g water or 5g steel?
(B) steel - ' (C) both materials are equ
Measuring g, the Acceleration due to Gravity Lab Report
Purpose: The purpose of this lab was to find gravity.
In this lab we used two different sized metal balls and dropped them onto a sensory pad from
different heights. We had to measure the
Physics 105 Projectile and Circular Motion
1. A baseball is hit with a horizontal speed of 16 m/s and a vertical speed of 12 m/s upward. What
are these speeds 5 s later?
(a) horizontal speed
(b) Correct: Your answer is correct.
(c) vertical speed -37
The Giant Disk Lab
Purpose: The purpose of this lab was to find Pi.
This lab was provided with six different disks all ranging in size and mass. What was
needed to be found was the circumference, diameter, and the mass of each disk
Study Quiz 1 (Chapters 1 & 2)
1. A car moving along a straight line on a flat horizontal surface undergoes a
constant acceleration of -3m/s2 (i.e. it is slowing down). If the initial speed of
the car is +25 m/s. How long does it take t
Freely Falling Bodies
In the absence of air resistance, it is found that all bodies
at the same location above the Earth fall vertically with
the same acceleration. If the distance of the fall is small
compared to the radius of the Earth, then the acceler
Chapter 4 & 5
Universal Force of Gravity
The airplane is moving horizontally with a constant velocity of +115 m/s at an
altitude of 1050m. Determine the time required for the Care package to hit the
Impulse and Momentum
The Impulse-Momentum Theorem
There are many situations when the
force on an object is not constant.
Our kinematic equations to describe
motion will not work for these situations.
Impulse and Momentum are used instead!
Chapter 1 Suggested Homework:
#19, 22, 23, 26, 27
#19 How many seconds are in 1 Day?
#22 If 1 inch = 2.54 cm, how tall (in centimeters) is a 6 ft tall basketball player?
#23 How many inches are there in 1 m?
# 26 Write each of the following numbers in pow