Answer:
The correct answers are a and d
Explanation:
In this experiment it can be analyzed using Newton's second law
F = m a
m = F / m
The outside is supplied by the spring balance and is constant, therefore the acceleration of the system is also constant.
The acceleration can be found with the kinematic equations
x = v t + ½ a t²
As we start from rest the initial speed is zero
a = 2 x / t²
Therefore we need the reading of position and time.
Finally, the relationship between the balance reading and this acceleration of the mass of the system
Let's analyze the answers
a) True. It is one of the necessary quantities
b) False. With the equipment we cannot measure the speed directly
c) false. Acceleration is calculated
d) true. It is the other magnitude necessary for the calculation.
The correct answers are a and d
