In the definition of weight, W = mg, the mass m refers to an inertial mass. True or false?

inertial-mass

#1

1. In the definition of weight, W = mg, the mass m refers to an inertial mass.
True or false

2. For a cart moving along a track with the x-axis parallel to the track, all forces acting on the cart must be along the x-direction.
True or false

3. If the cart is moving on the positive x axis, the x-component of velocity must be positive.
True or False

Answer:

a. False; Passive gravitational mass

b. False; Forces in the y direction may cancel each other

c. True