A \(0.12-\mathrm{kg}\) cart moving on a straight, low-friction track gets a shove so that its speed changes. Its initial and final speeds measured in the Earth reference frame are \(0.40 \mathrm{~m} / \mathrm{s}\) and \(0.80 \mathrm{~m} / \mathrm{s}\) (Figure 6.9). Determine the change in the cart's momentum as seen from

(a) the Earth reference frame and

(b) a reference frame \(\mathrm{M}\) moving in the same direction as the cart at a speed of \(0.60 \mathrm{~m} / \mathrm{s}\) relative to the track.

Data from Figure 6.9

Transcribed Image Text:

1.2 (m/s) shove 0.8 cart 0.4 AUTECT (ms) 20 40 60 80 100 120