A car accelerates from rest to 90km/h in 10 seconds.What is its acceleration in m/s2?
a certain car has an acceleration of 2.4m/s squere.assume that its acceleration remains constant.starting from rest,how long does the car require to reach a velocity of 90km/h?how far does it travel while reaching that velocity?
90 km/hr = (90*1000/3,600) m/s
v = 0 + a t
90/3.6 = a (10)
a = 9/3.6 m/s^2
Arsema
Very nice
0.007
To find the acceleration in m/s², we need to convert the speed from km/h to m/s and then use the formula for acceleration.
Step 1: Convert the speed from km/h to m/s.
To convert km/h to m/s, we divide the speed by 3.6 because there are 3.6 seconds in one hour.
90 km/h ÷ 3.6 = 25 m/s
Step 2: Find the acceleration using the formula.
The formula for acceleration is:
acceleration = (final velocity - initial velocity) / time
In this case, the initial velocity is 0 m/s (as the car starts from rest), the final velocity is 25 m/s, and the time is 10 seconds.
acceleration = (25 m/s - 0 m/s) / 10 s
acceleration = 2.5 m/s²
Therefore, the acceleration of the car is 2.5 m/s².