Assignment Physics 1
June 2011
Problem 1
Summary:
Assume cart A is heavier than cart B => mA = 2mB
F A =F B for the same time
Find p and K
Solution
We have F = ma = m
v f v i
t
Because two carts exper
Assignment Physics 1
June 2011
1. Two carts, one twice the mass of the other, experience the same force for the
same time. What is their difference in momentum? What is their difference in
kinetic ene
Homework: 1, 3, 8, 13, 18, 25, 28, 32, 43 (p. 159-162)
1. If a Saturn V rocket with an Apollo spacecraft attached had a
combined mass of 2.9 x 105 kg and reached a speed of 11.2 km/s,
how much kinetic
Homework: 41, 47, 52 (p. 134-135)
41. In the figure below, a car is driven at constant speed over a
circular hill and then into a circular valley with the same radius. At
the top of the hill, the norm
Homework: 18, 52 (pages 190-193);
1, 4, 14, 15, 18, 20, 26, 33 (pages 229-233)
18. A block of mass m = 2.0 kg is dropped from height h = 40 cm
onto a spring of spring constant k = 1960 N/m. Find the m
3.4.2. Conservative Forces (gravitational and spring force)
and Potential Energy
The work done by a force F=F(x):
xf
xi
W F ( x)dx
xf
U -W xi F ( x)dx
a. Gravitational Potential Energy
U -W (mg)dy mg(
Homework: 46, 48, 56, 58, 60, 66 (p. 233-235)
46. A bullet of mass 10g strikes a ballistic pendulum of mass 2kg. The
center of mass of the pendulum rises a vertical distance of 12 cm.
Assuming that th