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

6000kg

Step-by-step 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 =
`(final velocity - initial velocity )/(time)`

Force = mass x
`(final velocity - initial velocity )/(time)`

Insert the parameters and solve;

3000 = mass x
`(15 - 10)/(10)`

3000 =
`(mass)/(2)`

Mass = 6000kg