A car has an initial velocity of 10m/s. It accelerates at a rate of 2m/s2 until it reaches 30m/s. How far does it travel and for how long?

after 10 seconds,  the car reaches 30m/s and travels 200 m

Explanation:

final velocity = initial velocity + acceleration • time

30 m/s = 10 m/s + 2 m/s/s • time

subtract 10m/s from both sides

20 m/s = 2m/s/s • time

divide each side by 2m/s

10 s = time

d = 1/2 acceleration • time^2 + initial velocity • time

d = 1/2 • 2m/s/s • 10s^2 + 10m/s • 10s

d = 1 • 100m  + 100m

d = 200m

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete