A child drags a 0.518 kg toy elephant

across flat ground at constant speed,

with a 5.23 N force at a 51.0° angle.

What is the normal force acting on

the toy?

The normal component of force applied = 5.23 sin 51 N

Let R be the reaction force from the ground. Weight of the toy

W = mg

.518 x 9.8

= 5.07 N

As there is no movement in vertical direction, these forces will um up to zero

W - R - 5.23 SIN 51 = 0

R = W - 5.23 SIN 51

5.07 - 4.06 N.

1.01 N.