Question

1) A bus decreases its speed from 16 m/s to 10 m/s in sec. Find its speed.​

Answer 1

a bus decrease it's speed is 6m/s

Answer 2

Given:

initial speed u = 16 m/s

final speed v = 10 m/s

time t = 5 sec

To find:

acceleration a =?

Step-to-step-explanation:

• The acceleration is the rate of change of the velocity with respect to the time of an object.
• Simply the acceleration is the ratio of difference of final speed & initial speed to time.

• Mathematically the acceleration is expressed as:

        $\displaystyle a= \frac{v-u}{t}$

• Put the given values in the above equation to find the acceleration.

        $\displaystyle a= \frac{10-16}{5}$

        a = - 1.2

• The negative sign shows that speed is decreasing.

        a = 1.2 m/s²

• The acceleration is 1.2 m/s².