A bus starts from rest and attains 40km/hr velocity after 10sec . Calculate the acceleration of bus in m/sec2
To calculate the acceleration of the bus in m/sec², we can use the equation:
acceleration = change in velocity / time
First, we need to convert the given velocity of the bus from km/hr to m/sec.
Given:
Initial velocity (u) = 0 km/hr (because the bus starts from rest)
Final velocity (v) = 40 km/hr
Time (t) = 10 sec
To convert velocity from km/hr to m/sec, we use the conversion factor:
1 km/hr = 0.2778 m/sec
Converting the final velocity:
v = 40 km/hr * 0.2778 m/sec
v = 11.112 m/sec
Now, we can calculate the acceleration:
acceleration = (v - u) / t
acceleration = (11.112 m/sec - 0 m/sec) / 10 sec
acceleration = 11.112 m/sec / 10 sec
acceleration = 1.1112 m/sec²
Therefore, the acceleration of the bus is 1.1112 m/sec².
First convert 40 km/hr to m/hr:
40 km/hr x 1000 m/km
= 40 000 m/hr
Now convert 40 000 m/hr to m/s:
40 000 m/hr / 3600 s/hr
~ 11.11 m/s
acceleration = change in velocity / change in time
= (11.11 m/s - 0 m/s) / 10 s
= ?