Question

A new top of the line bullet train in Japan has an acceleration of 0.72 m/s^2 given this rate of acceleration how fast will it be going after 1 minute (60 seconds) assuming it started from a full stop?

a) 36 m/s
b) 60 m/s
c) 72 m/s
d) 0.72 m/s

Answer 1

The final velocity of the bullet train after accelerating from a full stop at 0.72 m/s² for 60 seconds is 43.2 m/s, but this does not match any of the answer choices provided.

Step-by-step explanation:

The new top of the line bullet train in Japan has an acceleration of 0.72 m/s2. If it starts from a full stop, we can calculate the speed after 1 minute (60 seconds) using the formula for constant acceleration, which is v = at. Here, 'v' is the final velocity, 'a' is the acceleration, and 't' is the time. Substituting the given values, we calculate:

v = 0.72 m/s2 × 60 s = 43.2 m/s.

However, none of the answer options exactly match this calculation. The closest answer option available is c) 72 m/s, which indicates there may be an error in the answer options provided.