Question

A rocket launching in the Ukraine accelerates upwards from rest to a speed of 12 km/s in 8

seconds. Calculate the acceleration

Answer 1

The acceleration of the rocket is 1.5 km/s².

Step-by-step explanation:

To calculate the acceleration, we can use the formula:

a = (v - u) / t

Where:
a = acceleration
v = final velocity
u = initial velocity
t = time

In this case, the rocket starts from rest (u = 0) and reaches a final velocity of 12 km/s (v = 12 km/s) in 8 seconds (t = 8 s).

Substituting the values in the formula:

a = (12 km/s - 0) / 8 s

a = 1.5 km/s²

Therefore, the acceleration of the rocket is 1.5 km/s².

Answer 2

Answer: 1.5 km/s²

Step-by-step explanation:

Given that,

Initial speed Vi = 0 km/s

Final speed Vf = 12km/s

Acceleration A = ?

Time taken T = 8 seconds

Recall that acceleration is the rate of change of velocity per unit time

i.e acceleration = (Vf - Vi)/T

A = (12km/s - 0km/s) / 8 seconds

A = 12km/s / 8 seconds

A = 1.5 km/s²

Thus, the acceleration of the rocket is 1.5 km/s²