a car travels east with a velocity of 80 km/h for 90 minutes how far did the car travel (show your work)

Physics

1 answer:

olga55 [171]3 years ago

3 0

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Given terms :

velocity (v) = 80 km/h

time (t) = 90 minutes = 1.5 hour

As we know, Distance covered is equal to :

$velocity \times time$

$80 \times 1.5$

$120 \: \: km$

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You can use any coordinate system you like in order to solve a projectile motion problem. To demonstrate the truth of this state

posledela

Answer:

a) y₂ = 49.1 m , t = 1.02 s , b) y = 49.1 m , t= 1.02 s

Explanation:

a) We will solve this problem with the missile launch kinematic equations, to find the maximum height, at this point the vertical speed is zero

$v_{y}$ ² = $v_{oy}$ ² - 2 g (y –yo)

The origin of the coordinate system is on the floor and the ball is thrown from a height

y-yo = $v_{oy}² /2 g
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The height from the ground is the height that rises from the reference system plus the depth of the ground from the reference system
 y₂ = 5.1 + 44
 y₂ = 49.1 m
Let's use the other equation to find the time
 [tex]v_{y}$ = $v_{oy}$ - g t