How long must a force F be applied to a mass M to change the velocity of the mass by 2 m/s if

· F = 1471 N

· M = 153 kg

You know that F=ma.

Therefore, you can easily calculate the acceleration.

Once you know the acceleration, a, you just need to use

,

where is the change in velocity and is the amount of time that passes. All you have to do is solve for .

Can you do that?