Question

If a bus accelerates from 10 m/s to 15 m/s in 10 seconds with a force of 3000N what is its mass?

Answer 1

Answer:

6000kg

Explanation:

Given parameters:

Initial velocity  = 10m/s

Final velocity  = 15m/s

Time = 10s

Force  = 3000N

Unknown:

Mass of the bus = ?

Solution:

Force is the mass multiplied by acceleration.

        Force = mass x acceleration

 Acceleration = $\frac{final velocity - initial velocity }{time}$

  Force  = mass x  $\frac{final velocity - initial velocity }{time}$

Insert the parameters and solve;

           3000 = mass x $\frac{15 - 10}{10}$

            3000 = $\frac{mass}{2}$

  Mass  = 6000kg