A person pushes a shopping cart with a force of 98 N acting down at 45°. If the cart travels at a constant speed of 0.8 m/s, what is the value of the combined retarding force acting horizontally on the cart due to friction and air drag? [Hint: It is the horizontal component of the force that drives the cart forward. The constant speed tells you that Fx = ma = 0.]

Question

anonymous · Answer

98N x sin 45=horizontal component force = 69.296N
as u know constant speed mean zero resultant force, then the total retarding force is 69.296