Question

1. the speed of a falling object (without air resistance):

a. depends on the mass of the object
b. depends on the size of the object
c. depends on the weight of the object
d. is the same for all objects

Explanation:

When there is no air resistance, all objects in free - fall near the Earth's surface accelerate at the same rate \(g\approx9.8\ m/s^{2}\). Using the kinematic equation \(v = v_{0}+gt\) (where \(v_{0} = 0\) for an object starting from rest), the speed \(v = gt\). This shows that the speed of a falling object (without air resistance) depends only on the time of fall and the acceleration due to gravity, not on the mass, size, or weight of the object.

Answer:

D. is the same for all objects