Author Question: When a spring is compressed, its mass increases. Indicate whether the statement is true or ... (Read 96 times)

casperchen82 · **on:** Jul 29, 2018

When a spring is compressed, its mass increases.

Indicate whether the statement is true or false

Question 2

The position of an air-track cart that is oscillating on a spring is given by x = (12.4 cm) cos(6.35 s-1)t. At what value of t after t = 0 s is the cart first located at x = 8.47 cm?

A) 4.34 s
B) 0.108 s
C) 0.129 s
D) 7.39 s
E) 7.75 s