a jeepney from rest accelerates unit fromly covers the time 3.25s. and covers in 15m.
Determine the acxeleration of jeepney
a= changevelocty/time=2(15/3.25)/3.25
To determine the acceleration of the jeepney, we can use the kinematic equation:
v = u + at
where:
v = final velocity (m/s)
u = initial velocity (m/s)
a = acceleration (m/s^2)
t = time (s)
Given that the jeepney starts from rest (initial velocity u = 0 m/s), and covers a distance of 15 m in a time of 3.25 s, we can calculate its acceleration.
First, rearrange the equation to solve for acceleration:
a = (v - u) / t
Since the jeepney starts from rest, the final velocity (v) would be the velocity it reaches after 3.25 s.
v = distance / time
= 15 m / 3.25 s
Now, substitute the values into the equation:
a = (v - u) / t
= (15 m / 3.25 s - 0 m/s) / 3.25 s
Simplifying, we get:
a = 15 m / (3.25 s * 3.25 s)
Calculate the value:
a = 15 m / 10.5625 s^2
a ≈ 1.42 m/s^2
Therefore, the acceleration of the jeepney is approximately 1.42 m/s^2.
To determine the acceleration of the jeepney, we need to use the formula for acceleration:
acceleration (a) = (change in velocity) / (change in time)
In this case, we are given the time it took for the jeepney to accelerate and the distance it covered during that time. We know that the initial velocity of the jeepney was at rest (zero), so the change in velocity will be equal to the final velocity.
First, we need to determine the final velocity of the jeepney. We can do this by using the formula for average speed:
average speed = total distance / total time
Here, the total distance is given as 15m, and the total time is given as 3.25s.
average speed = 15m / 3.25s
Now, we have the average speed. Since the jeepney started from rest, the average speed is equal to the final velocity.
final velocity = average speed = 15m / 3.25s
Next, we can substitute the final velocity and time into the formula for acceleration:
acceleration (a) = (final velocity - initial velocity) / (change in time)
Since the initial velocity is zero, we can simplify the formula to:
acceleration (a) = final velocity / change in time
Now, we can substitute the values we have:
acceleration (a) = (15m / 3.25s) / 3.25s
By calculating this expression, we can determine the acceleration of the jeepney.