Veronicas velocity was measured as 4.3 m/s. She displaced 20 meters in 4.7 seconds. Which piece of information is missing for the correct calculation of velocity?

In this question, it was not stated that Veronica’s velocity is constant at 4.3m/s. Velocity can be categorised both by Instantaneous velocity and constant velocity.

If the question is finding veronica’s constant velocity, no information is missing.

If the question is finding Veronica’s instantaneous velocity, information regarding acceleration is missing.

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Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.