How much force is needed to accelerate a 4.0 kg physics book to an acceleration of 2.0 m/s^2?

2 Answers

Force = 8.0kgm//s^2

Explanation:

Force = mass x acceleration
Mass = 4.0kg
Acceleration = 2.0m//s^2
Hence,force = (4.0x2.0)kgm//s^2
= 8.0kgm//s^2

Apr 6, 2018

8 newtons

Explanation:

We use Newton's second law of motion, which states that,

F=ma

  • m is the mass of the object in kilograms

  • a is the acceleration of the object in meters per second

And so, plugging in the values, we get,

F=4 \ "kg"*2 \ "m/s"^2

=8 \ "N"