Reading Assignment: 4'3

1
Reading Assignment (4.3)
Which of the following is equivalent to 1 Newton?
A
B
D
C
2
Reading Assignment (4.3)
According to the bvook, which of the following
are explanations for mass?

• The quantity of matter in a body
• Related to the number of protons, neutrons and
  electrons in a body
• Quantitative measure of inertia
• The ratio of the magnitude of the net force to
  the magnitude of the acceleration

3
A person capable of exerting a force of 200 N is
working on moving a 50-kg cart. For each of the
cases below, determine the acceleration of the
cart.
pushing straight forward
pulling at 30ºangle
pulling upward on rope
4
Decide whether each of the following is true or
false. Give a reason. The mass of an object
depends on its location. The weight of an object
depends on its location. Mass and weight
describe the same thing in different units.
5

• The 1000-N box will slide down the incline as
  soon as the rope is cut. Over the length of
  0.50m, the box reaches a speed of 1.2 m/s.
• Find the acceleration of the box.
• Find the mass of the box
• Find the magnitude of the friction force on the
  box.