Question

A force of four newtons acts on a body of mass 2kg for 4 seconds. If the body is at rest. Find velocity and distance covered in 10 seconds

Answer 1

v = 8 m/s ; S = 16 m

Explanation:

mass = 2 kg

F = 4 N

t = 4 s

F = ma

a = F/m

a = 4/2

=

$2m {s}^{2}$

v = u+at = 0 + 2x4 = 8 m/s

S = ut + 0.5 a t^2

S = 0*4 + 0.5*2*(4*4)

S = 0 + 16

S = 16 m