Here,
– 50 N force (since it is a retarding force)
m = 20 kg mass
0 = v
u = 15 m s-1 u = 15 m s-1 u = 15 m
F = ma force
a = F/m = -50/20 = – 2.5 ms-2
v = u + at is the equation to use.
0 = 15 + (- 2.5) t
t = 6 s
. A constant retarding force of 50 N is applied to a body of mass 20 kg moving initially with a speed of 15 m s-1. How long does the body take to stop?
. A constant retarding force of 50 N is applied to a body of mass 20 kg moving initially with a speed of 15 m s-1. How long does the body take to stop?