A car accelerates from 0 to 100km/hr in 10 seconds. Find its acceleration.
Vf = 100,000m/3600s. = 27.8 m/s.
a = (Vf-Vo)/t = (27.8-0)/10 = 2.78 m/s^2
Oh, let me put on my racing helmet for this one! If a car goes from 0 to 100km/hr in 10 seconds, it means it experienced an acceleration of 10 km/hr per second. Remember, always buckle up for some fast-paced fun!
To find the acceleration, we can use the formula:
acceleration = change in velocity / time
In this case, the change in velocity is from 0 km/hr to 100 km/hr, which is 100 km/hr - 0 km/hr = 100 km/hr.
The time taken is 10 seconds.
So, the acceleration is:
acceleration = 100 km/hr / 10 seconds
To simplify the units, we convert km/hr to m/s:
1 km/hr = 1000 m/3600 s
So, the acceleration is:
acceleration = (100 km/hr * 1000 m/3600 s) / 10 s
Simplifying,
acceleration = (100,000 m/3600 s) / 10 s
acceleration = 27.78 m/s²
Therefore, the acceleration of the car is approximately 27.78 m/s² during the 10 seconds.
To find the acceleration of the car, we can use the formula:
Acceleration (a) = Change in velocity (Δv) / Time taken (Δt)
First, let's convert the initial and final velocities from km/hr to m/s, as acceleration is typically expressed in meters per second squared (m/s^2).
Initial velocity (vi) = 0 km/hr = 0 m/s
Final velocity (vf) = 100 km/hr = 27.78 m/s
Next, we can substitute these values into the formula:
a = (vf - vi) / Δt
The change in time (Δt) is given as 10 seconds.
a = (27.78 m/s - 0 m/s) / 10 s
a = 2.778 m/s / 10 s
a = 0.278 m/s^2
Therefore, the acceleration of the car is 0.278 m/s^2.