Question

A bus starts from rest and attains 162km/h velocity after 10seconds.Calculate the acceleration of the bus.

Answer 1

Answer:

[ 1st , convert km/hr into m/s , i.e., 162 * 5/18 = 45m/s ]

u = 0m/s

v = 45m/s

t = 10s

a = ?

a = v - u / t

a = 45m/s - 0m/s / 10s

a = 4.5m/s^2

hope it helps

Answer 2

Answer:

4.5 m/s²

Explanation:

Given:

• Initial velocity = u = 0 m/s

• Final velocity = v = 162 km/h

       162 km/h = 162×$\frac{5}{18}$ = 45 m/s

• Time taken = 10 seconds

To find:

Acceleration of the bus

Acceleration = (Final velocity - initial velocity)/time

Acceleration = (45-0)/10

Acceleration = (45)/10

Acceleration = 4.5 m/s²

The acceleration of the bus is 4.5 m/s² which means that the bus will increase its speed by 4.5 m/s every second