Question

find the magnitude of net force on a 20 kg mass if it accerlation uniformly from rest to 5.8 m/s in 3sec

Answer 1

Answer:

F = 38.67 N

Explanation:

Mass, m = 20 kg

Initial velocity, u = 0 m/s

Final velocity, v = 5.8 m/s

time, t = 3 sec

We know that Force,

F = ma

F = m($\frac{v-u}{t}$)

F = 20 * ($\frac{5.8 - 0}{3}$)

F = (20 * 5.8) / 3

F = 116/3

F = 38.67 N