a train moving west at a velocity of 15m/s is accelerated steadily to 17m/s over a 12 second period what is the acceleration of the train
acceleration=change of velocity/time
Calculate the specific heat for a 20 g piece of metal if 30 J of energy is required to raise its temperature by 12.5 K.
To find the acceleration of the train, we can use the formula:
Acceleration (a) = (Change in velocity) / (Time taken)
Given that the initial velocity (u) of the train is 15 m/s, the final velocity (v) is 17 m/s, and the time taken (t) is 12 seconds, we can substitute these values into the formula:
Acceleration (a) = (17 m/s - 15 m/s) / (12 s)
Simplifying further:
Acceleration (a) = 2 m/s / 12 s
Acceleration (a) = 1/6 m/s²
Therefore, the acceleration of the train is 1/6 m/s².
To find the acceleration of the train, we can use the formula:
acceleration = (final velocity - initial velocity) / time
Given:
Initial velocity (u) = 15 m/s
Final velocity (v) = 17 m/s
Time (t) = 12 seconds
Now we can substitute the values into the formula to calculate the acceleration:
acceleration = (17 m/s - 15 m/s) / 12 s
acceleration = 2 m/s / 12 s
acceleration = 0.1667 m/s²
Therefore, the acceleration of the train is 0.1667 m/s².