medium · Act science
In an experiment, a cart was released from rest at the top of a ramp and its speed was measured at fixed distances down the ramp: Distance (m): 0.5, 1.0, 1.5, 2.0 Speed (m/s): 1.4, 2.0, 2.4, 2.8 Which statement best describes the relationship between distance traveled and the cart's speed?
- As distance increases, speed decreases steadily.
- As distance increases, speed increases, but by smaller amounts for each added 0.5 m.
- Speed stays constant as distance increases.
- Speed increases by the same amount for each added 0.5 m of distance.
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