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Using the modified atwood machine, suppose the masses are returned to their orig

ID: 2178516 • Letter: U

Question

Using the modified atwood machine, suppose the masses are returned to their original positions, and now there is significant friction between the cart and the track (but no friction anywhere else). What would happen to T, the tension in the cord, and a, the acceleration of the cart?

a) T increases, a decreases
b) T decreases, a remains the same
c) T remains the same, a decreases
d) T remains the same, a increases
e) both T and a increase
f) T increases, a remains the same
g) both T and a remain the same
h) T dcreases, a increases
i) both T and a decrease

Explanation / Answer

a)T increases, a decreases