Question

1. A graph of the acceleration a, against the difference in mass 1 and mass 2 (delta m), with the sum of masses (M_total) held constant for the Atwood machine (like in question 2) gives:

a) slope = g; Intercept on the y-axis = 0

b) slope = g/Mtotal; Intercept on the y-axis = 1

c) slope = g; Intercept on the y-axis = 1

d) slope = g/Mtotal; Intercept on the y-axis = 0

2. What is the acceleration of the system (in question 2) when the difference in masses (delta m) is zero

a) undefined

b) constant

c) g (= 9.81m/s^2)

d) zero

3. If m1 = 30kg and m2 = 60kg, what is the acceleration of the system when the masses are released?

a) 4.90 m/s^2

b) 9.80 m/s^2

c) 3.27 m/s^2

d) 29.40 m/s^2

4. An Atwood machine is simply a pulley with two unequal masses hanging from it. If m1 > m2 in the figure below, find the expression for the acceleration of the system when the masses are released? (g is the acceleration due to g)

a) a = (m1 - m2)*g

b) a = (m1 + m2)*g

c) a = ((m1 - m2)/(m1 + m2))*g

d) a = ((m1 + m2)/(m1 - m2))*g

Answer 1