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A rocket initially at rest accelerates at a rate of 99.0 meters/second2. Calculate the distance covered by the rocket if it attains a final velocity of 445 meters/second after 4.50 seconds.
a) 2.50 × 102 meters
b) 1.00 × 103 meters
c) 5.05 × 102 meters
d) 2.00 × 103 meters
e) 1.00 × 102 meters

Respuesta :

Answer: The correct answer is option b.

Explanation: We are given that the rocket is at rest initially final velocity is 445m/s.

The acceleration of the rocket is [tex]99.0m/s^2[/tex]

To calculate the distance of rocket, we use third equation of motion, which is:

[tex]v^2-u^2=2as[/tex]

where, v = final velocity = 445m/s

u = initial velocity = 0m/s

a = acceleration = [tex]99m/s^2[/tex]

s = distance = ? m

Putting values in above equation, we get:

[tex](445)^2-(0)^2=2(99)s\\\\s=1\times 10^3meters[/tex]

ghostcd40

Answer:

the answere is B

Explanation:

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