Question

A bus decrease its speed 8 km/h to 6okm/h in 5sec
Find the acceleration ?​

Answer 1

Given :-

• Initial speed = 8 km/h
• Final speed = 6 km/h
• Time = 5 sec

To Find :-

• Acceleration

Solution :-

Converting units -

Initial speed = 8 km/h = 8 × 5/18 = 2.22 m/s

Final speed = 6 km/h = 6 × 5/18 = 1.66 m/s

Substituting the value in formula -

➩ a = (v - u) / t

➩ a = ( 1.66 - 2.22 ) / 5

➩ a = - 0.56/5

➩ a = -0.1

Acceleration = -0.1 m/s²