Two experiments are conducted to determine the mass of an object. -In Experiment 1, you place the object on an electronic balance and read the object's weight.
-In Experiment 2, you apply a constant force to pull the object along a horizontal surface, while using a motion detector to measure the object's speed as it is pulled.

All frictional forces for both experiments are considered to be negligible. Which of the two experiments, if either, could be used to determine the gravitational mass of the object?

a. Experiment 2 only
b. Experiment 1 only
c. Neither experiment
d. Both experiments