Question

A force of 25 N acts on an object, and changes its velocity from 40m/s to 25 m/s in 5 seconds. What is the mass of the object?

Answer 1

Answer:

25/3 kg

Explanation:

Acceleration,a = (change in velocity)/time

Or, a = (40-25)/5 = 15/5= 3 m/s^2

Now,

Force = mass*Acceleration (f=ma)

Or, 25N = mass * 3

Or, mass= 25/3 Kg

Or, mass= 8.33 Kg

:))