Question

.

An object accelerates from 10 m/s to 30 m/s in 4.0 seconds.
The accelerating force is 150 N.
What is the mass of the object?

Answer 1

m=30kg

Step-by-step explanation:

m=
`(F)/(a)` ............(1)

F=150N

a=?

a=
`(vf-vi)/(t)`

a=
`(30-10)/(4)`

a=
`(20)/(4)`

a=5ms^-2

Putting the value of "F" and "a" in eq (1),

m=
`(150)/(5)`

m=30kg