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How long will it take a car to go from a complete stop to 44km/h if they are accelerating at 5km/h

User Jpinelo
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2 Answers

1 vote

Answer: 8.8 hours

Step-by-step explanation:

Ok so basically t = time

44 = 0 + 5 x t =

44/5 =

8.8 hours

User Bryan Gentry
by
5.5k points
7 votes

Explanation:As always, if the relation does not come to mind immediately, take a glance at the basic kinematic equations of constant acceleration

what do we know? Vi start speed; Vf terminal speed; acceleration a; and we want to know time t. Three of the relations have a term in d distance - which we don’’t know. That leaves this one: Vt = Vi + a*t. Here we go then:

44 = 0 + 5 * t so t = 44 / 5 = 8.8 hours

User Jakeii
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4.4k points