Arocket 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

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

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

where, v = final velocity = 445m/s

u = initial velocity = 0m/s

a = acceleration =

s = distance = ? m

Putting values in above equation, we get:

the answere is B

Explanation:

explanation:

as the height from which the ruler was dropped increased, the speed of the ruler at ryan's hand increased.