A car starts from rest and speeds up at 2.2m/s^2 after the traffic light turns green , how far will it have gone when it os trav

Question

3 years ago

8

eling at 18m/s?
PLZ write down the steps and the equation you used and thx <3

1 answer:

alex41 [277] · Answer 1 · 2021-12-08T05:09:35+03:00

73.6m

Explanation:

Initial velocity, U = 0

moving velocity, V = 18m/s

Acceleration = 2.2m/s²

Unknown:

Distance covered = ?

Solution:

we have to use the appropriate equation of motion to solve this problem

V² = U² +2as

V is the final velocity

U is the initial velocity

a is the acceleration

s is the distance

since u = 0

V² = 2as

18² = 2 x 2.2 x s

324 = 4.4s

s = $\frac{324}{4.4}$ = 73.6m

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