) A 12kg statue of a horse is pulled by an unknown force and undergoes an acceleration of 5m/s 2a) Calculate the force that is causing this acceleration. b) Calculate the normal force.

Question

) A 12kg statue of a horse is pulled by an unknown force and undergoes an acceleration of 5m/s 2

a) Calculate the force that is causing this acceleration.

b) Calculate the normal force.

Answer 1

Given

M = 12 kg

a = 5 m/s^2

Find

a) a

b) Fn

Solution

Draw Free body diagram

Force Applied = F (Points in the positive horizontal axis)

Force of Weight = W = M*g (Points in the vertical downward direction)

Normal Force = Fn (Points in the vertical upward direction)

Sum Force x = ma

a)

F = M*a

F = 12 * 5 = 60 N

b)

Sum Force y = 0

Fn - mg = 0

Fn = m*g = 12*9.81 = 111.72 N